在 html 页面中选择国家下拉列表

Question

我需要在 html page.A 下拉列表中选择一个选择标签来从所有国家中选择一个特定的国家。

Answer 1

这是国家/地区列表，

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ISO-3166-1：Alpha-2 代码

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<select>\n    <option value="AF">Afghanistan</option>\n    <option value="AX">\xc3\x85land Islands</option>\n    <option value="AL">Albania</option>\n    <option value="DZ">Algeria</option>\n    <option value="AS">American Samoa</option>\n    <option value="AD">Andorra</option>\n    <option value="AO">Angola</option>\n    <option value="AI">Anguilla</option>\n    <option value="AQ">Antarctica</option>\n    <option value="AG">Antigua and Barbuda</option>\n    <option value="AR">Argentina</option>\n    <option value="AM">Armenia</option>\n    <option value="AW">Aruba</option>\n    <option value="AU">Australia</option>\n    <option value="AT">Austria</option>\n    <option value="AZ">Azerbaijan</option>\n    <option value="BS">Bahamas</option>\n    <option value="BH">Bahrain</option>\n    <option value="BD">Bangladesh</option>\n    <option value="BB">Barbados</option>\n    <option value="BY">Belarus</option>\n    <option value="BE">Belgium</option>\n    <option value="BZ">Belize</option>\n    <option value="BJ">Benin</option>\n    <option value="BM">Bermuda</option>\n    <option value="BT">Bhutan</option>\n    <option value="BO">Bolivia, Plurinational State of</option>\n    <option value="BQ">Bonaire, Sint Eustatius and Saba</option>\n    <option value="BA">Bosnia and Herzegovina</option>\n    <option value="BW">Botswana</option>\n    <option value="BV">Bouvet Island</option>\n    <option value="BR">Brazil</option>\n    <option value="IO">British Indian Ocean Territory</option>\n    <option value="BN">Brunei Darussalam</option>\n    <option value="BG">Bulgaria</option>\n    <option value="BF">Burkina Faso</option>\n    <option value="BI">Burundi</option>\n    <option value="KH">Cambodia</option>\n    <option value="CM">Cameroon</option>\n    <option value="CA">Canada</option>\n    <option value="CV">Cape Verde</option>\n    <option value="KY">Cayman Islands</option>\n    <option value="CF">Central African Republic</option>\n    <option value="TD">Chad</option>\n    <option value="CL">Chile</option>\n    <option value="CN">China</option>\n    <option value="CX">Christmas Island</option>\n    <option value="CC">Cocos (Keeling) Islands</option>\n    <option value="CO">Colombia</option>\n    <option value="KM">Comoros</option>\n    <option value="CG">Congo</option>\n    <option value="CD">Congo, the Democratic Republic of the</option>\n    <option value="CK">Cook Islands</option>\n    <option value="CR">Costa Rica</option>\n    <option value="CI">C\xc3\xb4te d\'Ivoire</option>\n    <option value="HR">Croatia</option>\n    <option value="CU">Cuba</option>\n    <option value="CW">Cura\xc3\xa7ao</option>\n    <option value="CY">Cyprus</option>\n    <option value="CZ">Czech Republic</option>\n    <option value="DK">Denmark</option>\n    <option value="DJ">Djibouti</option>\n    <option value="DM">Dominica</option>\n    <option value="DO">Dominican Republic</option>\n    <option value="EC">Ecuador</option>\n    <option value="EG">Egypt</option>\n    <option value="SV">El Salvador</option>\n    <option value="GQ">Equatorial Guinea</option>\n    <option value="ER">Eritrea</option>\n    <option value="EE">Estonia</option>\n    <option value="ET">Ethiopia</option>\n    <option value="FK">Falkland Islands (Malvinas)</option>\n    <option value="FO">Faroe Islands</option>\n    <option value="FJ">Fiji</option>\n    <option value="FI">Finland</option>\n    <option value="FR">France</option>\n    <option value="GF">French Guiana</option>\n    <option value="PF">French Polynesia</option>\n    <option value="TF">French Southern Territories</option>\n    <option value="GA">Gabon</option>\n    <option value="GM">Gambia</option>\n    <option value="GE">Georgia</option>\n    <option value="DE">Germany</option>\n    <option value="GH">Ghana</option>\n    <option value="GI">Gibraltar</option>\n    <option value="GR">Greece</option>\n    <option value="GL">Greenland</option>\n    <option value="GD">Grenada</option>\n    <option value="GP">Guadeloupe</option>\n    <option value="GU">Guam</option>\n    <option value="GT">Guatemala</option>\n    <option value="GG">Guernsey</option>\n    <option value="GN">Guinea</option>\n    <option value="GW">Guinea-Bissau</option>\n    <option value="GY">Guyana</option>\n    <option value="HT">Haiti</option>\n    <option value="HM">Heard Island and McDonald Islands</option>\n    <option value="VA">Holy See (Vatican City State)</option>\n    <option value="HN">Honduras</option>\n    <option value="HK">Hong Kong</option>\n    <option value="HU">Hungary</option>\n    <option value="IS">Iceland</option>\n    <option value="IN">India</option>\n    <option value="ID">Indonesia</option>\n    <option value="IR">Iran, Islamic Republic of</option>\n    <option value="IQ">Iraq</option>\n    <option value="IE">Ireland</option>\n    <option value="IM">Isle of Man</option>\n    <option value="IL">Israel</option>\n    <option value="IT">Italy</option>\n    <option value="JM">Jamaica</option>\n    <option value="JP">Japan</option>\n    <option value="JE">Jersey</option>\n    <option value="JO">Jordan</option>\n    <option value="KZ">Kazakhstan</option>\n    <option value="KE">Kenya</option>\n    <option value="KI">Kiribati</option>\n    <option value="KP">Korea, Democratic People\'s Republic of</option>\n    <option value="KR">Korea, Republic of</option>\n    <option value="KW">Kuwait</option>\n    <option value="KG">Kyrgyzstan</option>\n    <option value="LA">Lao People\'s Democratic Republic</option>\n    <option value="LV">Latvia</option>\n    <option value="LB">Lebanon</option>\n    <option value="LS">Lesotho</option>\n    <option value="LR">Liberia</option>\n    <option value="LY">Libya</option>\n    <option value="LI">Liechtenstein</option>\n    <option value="LT">Lithuania</option>\n    <option value="LU">Luxembourg</option>\n    <option value="MO">Macao</option>\n    <option value="MK">Macedonia, the former Yugoslav Republic of</option>\n    <option value="MG">Madagascar</option>\n    <option value="MW">Malawi</option>\n    <option value="MY">Malaysia</option>\n    <option value="MV">Maldives</option>\n    <option value="ML">Mali</option>\n    <option value="MT">Malta</option>\n    <option value="MH">Marshall Islands</option>\n    <option value="MQ">Martinique</option>\n    <option value="MR">Mauritania</option>\n    <option value="MU">Mauritius</option>\n    <option value="YT">Mayotte</option>\n    <option value="MX">Mexico</option>\n    <option value="FM">Micronesia, Federated States of</option>\n    <option value="MD">Moldova, Republic of</option>\n    <option value="MC">Monaco</option>\n    <option value="MN">Mongolia</option>\n    <option value="ME">Montenegro</option>\n    <option value="MS">Montserrat</option>\n    <option value="MA">Morocco</option>\n    <option value="MZ">Mozambique</option>\n    <option value="MM">Myanmar</option>\n    <option value="NA">Namibia</option>\n    <option value="NR">Nauru</option>\n    <option value="NP">Nepal</option>\n    <option value="NL">Netherlands</option>\n    <option value="NC">New Caledonia</option>\n    <option value="NZ">New Zealand</option>\n    <option value="NI">Nicaragua</option>\n    <option value="NE">Niger</option>\n    <option value="NG">Nigeria</option>\n    <option value="NU">Niue</option>\n    <option value="NF">Norfolk Island</option>\n    <option value="MP">Northern Mariana Islands</option>\n    <option value="NO">Norway</option>\n    <option value="OM">Oman</option>\n    <option value="PK">Pakistan</option>\n    <option value="PW">Palau</option>\n    <option value="PS">Palestinian Territory, Occupied</option>\n    <option value="PA">Panama</option>\n    <option value="PG">Papua New Guinea</option>\n    <option value="PY">Paraguay</option>\n    <option value="PE">Peru</option>\n    <option value="PH">Philippines</option>\n    <option value="PN">Pitcairn</option>\n    <option value="PL">Poland</option>\n    <option value="PT">Portugal</option>\n    <option value="PR">Puerto Rico</option>\n    <option value="QA">Qatar</option>\n    <option value="RE">R\xc3\xa9union</option>\n    <option value="RO">Romania</option>\n    <option value="RU">Russian Federation</option>\n    <option value="RW">Rwanda</option>\n    <option value="BL">Saint Barth\xc3\xa9lemy</option>\n    <option value="SH">Saint Helena, Ascension and Tristan da Cunha</option>\n    <option value="KN">Saint Kitts and Nevis</option>\n    <option value="LC">Saint Lucia</option>\n    <option value="MF">Saint Martin (French part)</option>\n    <option value="PM">Saint Pierre and Miquelon</option>\n    <option value="VC">Saint Vincent and the Grenadines</option>\n    <option value="WS">Samoa</option>\n    <option value="SM">San Marino</option>\n    <option value="ST">Sao Tome and Principe</option>\n    <option value="SA">Saudi Arabia</option>\n    <option value="SN">Senegal</option>\n    <option value="RS">Serbia</option>\n    <option value="SC">Seychelles</option>\n    <option value="SL">Sierra Leone</option>\n    <option value="SG">Singapore</option>\n    <option value="SX">Sint Maarten (Dutch part)</option>\n    <option value="SK">Slovakia</option>\n    <option value="SI">Slovenia</option>\n    <option value="SB">Solomon Islands</option>\n    <option value="SO">Somalia</option>\n    <option value="ZA">South Africa</option>\n    <option value="GS">South Georgia and the South Sandwich Islands</option>\n    <option value="SS">South Sudan</option>\n    <option value="ES">Spain</option>\n    <option value="LK">Sri Lanka</option>\n    <option value="SD">Sudan</option>\n    <option value="SR">Suriname</option>\n    <option value="SJ">Svalbard and Jan Mayen</option>\n    <option value="SZ">Swaziland</option>\n    <option value="SE">Sweden</option>\n    <option value="CH">Switzerland</option>\n    <option value="SY">Syrian Arab Republic</option>\n    <option value="TW">Taiwan, Province of China</option>\n    <option value="TJ">Tajikistan</option>\n    <option value="TZ">Tanzania, United Republic of</option>\n    <option value="TH">Thailand</option>\n    <option value="TL">Timor-Leste</option>\n    <option value="TG">Togo</option>\n    <option value="TK">Tokelau</option>\n    <option value="TO">Tonga</option>\n    <option value="TT">Trinidad and Tobago</option>\n    <option value="TN">Tunisia</option>\n    <option value="TR">Turkey</option>\n    <option value="TM">Turkmenistan</option>\n    <option value="TC">Turks and Caicos Islands</option>\n    <option value="TV">Tuvalu</option>\n    <option value="UG">Uganda</option>\n    <option value="UA">Ukraine</option>\n    <option value="AE">United Arab Emirates</option>\n    <option value="GB">United Kingdom</option>\n    <option value="US">United States</option>\n    <option value="UM">United States Minor Outlying Islands</option>\n    <option value="UY">Uruguay</option>\n    <option value="UZ">Uzbekistan</option>\n    <option value="VU">Vanuatu</option>\n    <option value="VE">Venezuela, Bolivarian Republic of</option>\n    <option value="VN">Viet Nam</option>\n    <option value="VG">Virgin Islands, British</option>\n    <option value="VI">Virgin Islands, U.S.</option>\n    <option value="WF">Wallis and Futuna</option>\n    <option value="EH">Western Sahara</option>\n    <option value="YE">Yemen</option>\n    <option value="ZM">Zambia</option>\n    <option value="ZW">Zimbabwe</option>\n</select>\n

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ISO-3166-1：Alpha-3 代码

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<select>\n    <option value="AFG">Afghanistan</option>\n    <option value="ALA">\xc3\x85land Islands</option>\n    <option value="ALB">Albania</option>\n    <option value="DZA">Algeria</option>\n    <option value="ASM">American Samoa</option>\n    <option value="AND">Andorra</option>\n    <option value="AGO">Angola</option>\n    <option value="AIA">Anguilla</option>\n    <option value="ATA">Antarctica</option>\n    <option value="ATG">Antigua and Barbuda</option>\n    <option value="ARG">Argentina</option>\n    <option value="ARM">Armenia</option>\n    <option value="ABW">Aruba</option>\n    <option value="AUS">Australia</option>\n    <option value="AUT">Austria</option>\n    <option value="AZE">Azerbaijan</option>\n    <option value="BHS">Bahamas</option>\n    <option value="BHR">Bahrain</option>\n    <option value="BGD">Bangladesh</option>\n    <option value="BRB">Barbados</option>\n    <option value="BLR">Belarus</option>\n    <option value="BEL">Belgium</option>\n    <option value="BLZ">Belize</option>\n    <option value="BEN">Benin</option>\n    <option value="BMU">Bermuda</option>\n    <option value="BTN">Bhutan</option>\n    <option value="BOL">Bolivia, Plurinational State of</option>\n    <option value="BES">Bonaire, Sint Eustatius and Saba</option>\n    <option value="BIH">Bosnia and Herzegovina</option>\n    <option value="BWA">Botswana</option>\n    <option value="BVT">Bouvet Island</option>\n    <option value="BRA">Brazil</option>\n    <option value="IOT">British Indian Ocean Territory</option>\n    <option value="BRN">Brunei Darussalam</option>\n    <option value="BGR">Bulgaria</option>\n    <option value="BFA">Burkina Faso</option>\n    <option value="BDI">Burundi</option>\n    <option value="KHM">Cambodia</option>\n    <option value="CMR">Cameroon</option>\n    <option value="CAN">Canada</option>\n    <option value="CPV">Cape Verde</option>\n    <option value="CYM">Cayman Islands</option>\n    <option value="CAF">Central African Republic</option>\n    <option value="TCD">Chad</option>\n    <option value="CHL">Chile</option>\n    <option value="CHN">China</option>\n    <option value="CXR">Christmas Island</option>\n    <option value="CCK">Cocos (Keeling) Islands</option>\n    <option value="COL">Colombia</option>\n    <option value="COM">Comoros</option>\n    <option value="COG">Congo</option>\n    <option value="COD">Congo, the Democratic Republic of the</option>\n    <option value="COK">Cook Islands</option>\n    <option value="CRI">Costa Rica</option>\n    <option value="CIV">C\xc3\xb4te d\'Ivoire</option>\n    <option value="HRV">Croatia</option>\n    <option value="CUB">Cuba</option>\n    <option value="CUW">Cura\xc3\xa7ao</option>\n    <option value="CYP">Cyprus</option>\n    <option value="CZE">Czech Republic</option>\n    <option value="DNK">Denmark</option>\n    <option value="DJI">Djibouti</option>\n    <option value="DMA">Dominica</option>\n    <option value="DOM">Dominican Republic</option>\n    <option value="ECU">Ecuador</option>\n    <option value="EGY">Egypt</option>\n    <option value="SLV">El Salvador</option>\n    <option value="GNQ">Equatorial Guinea</option>\n    <option value="ERI">Eritrea</option>\n    <option value="EST">Estonia</option>\n    <option value="ETH">Ethiopia</option>\n    <option value="FLK">Falkland Islands (Malvinas)</option>\n    <option value="FRO">Faroe Islands</option>\n    <option value="FJI">Fiji</option>\n    <option value="FIN">Finland</option>\n    <option value="FRA">France</option>\n    <option value="GUF">French Guiana</option>\n    <option value="PYF">French Polynesia</option>\n    <option value="ATF">French Southern Territories</option>\n    <option value="GAB">Gabon</option>\n    <option value="GMB">Gambia</option>\n    <option value="GEO">Georgia</option>\n    <option value="DEU">Germany</option>\n    <option value="GHA">Ghana</option>\n    <option value="GIB">Gibraltar</option>\n    <option value="GRC">Greece</option>\n    <option value="GRL">Greenland</option>\n    <option value="GRD">Grenada</option>\n    <option value="GLP">Guadeloupe</option>\n    <option value="GUM">Guam</option>\n    <option value="GTM">Guatemala</option>\n    <option value="GGY">Guernsey</option>\n    <option value="GIN">Guinea</option>\n    <option valu

        
      
    

Answer 2

这里是

<select>
    <option value="Afghanistan">Afghanistan</option>
<option value="Albania">Albania</option>
<option value="Algeria">Algeria</option>
<option value="American Samoa">American Samoa</option>
<option value="Andorra">Andorra</option>
<option value="Angola">Angola</option>
<option value="Anguilla">Anguilla</option>
<option value="Antartica">Antarctica</option>
<option value="Antigua and Barbuda">Antigua and Barbuda</option>
<option value="Argentina">Argentina</option>
<option value="Armenia">Armenia</option>
<option value="Aruba">Aruba</option>
<option value="Australia">Australia</option>
<option value="Austria">Austria</option>
<option value="Azerbaijan">Azerbaijan</option>
<option value="Bahamas">Bahamas</option>
<option value="Bahrain">Bahrain</option>
<option value="Bangladesh">Bangladesh</option>
<option value="Barbados">Barbados</option>
<option value="Belarus">Belarus</option>
<option value="Belgium">Belgium</option>
<option value="Belize">Belize</option>
<option value="Benin">Benin</option>
<option value="Bermuda">Bermuda</option>
<option value="Bhutan">Bhutan</option>
<option value="Bolivia">Bolivia</option>
<option value="Bosnia and Herzegowina">Bosnia and Herzegowina</option>
<option value="Botswana">Botswana</option>
<option value="Bouvet Island">Bouvet Island</option>
<option value="Brazil">Brazil</option>
<option value="British Indian Ocean Territory">British Indian Ocean Territory</option>
<option value="Brunei Darussalam">Brunei Darussalam</option>
<option value="Bulgaria">Bulgaria</option>
<option value="Burkina Faso">Burkina Faso</option>
<option value="Burundi">Burundi</option>
<option value="Cambodia">Cambodia</option>
<option value="Cameroon">Cameroon</option>
<option value="Canada">Canada</option>
<option value="Cape Verde">Cape Verde</option>
<option value="Cayman Islands">Cayman Islands</option>
<option value="Central African Republic">Central African Republic</option>
<option value="Chad">Chad</option>
<option value="Chile">Chile</option>
<option value="China">China</option>
<option value="Christmas Island">Christmas Island</option>
<option value="Cocos Islands">Cocos (Keeling) Islands</option>
<option value="Colombia">Colombia</option>
<option value="Comoros">Comoros</option>
<option value="Congo">Congo</option>
<option value="Congo">Congo, the Democratic Republic of the</option>
<option value="Cook Islands">Cook Islands</option>
<option value="Costa Rica">Costa Rica</option>
<option value="Cota D'Ivoire">Cote d'Ivoire</option>
<option value="Croatia">Croatia (Hrvatska)</option>
<option value="Cuba">Cuba</option>
<option value="Cyprus">Cyprus</option>
<option value="Czech Republic">Czech Republic</option>
<option value="Denmark">Denmark</option>
<option value="Djibouti">Djibouti</option>
<option value="Dominica">Dominica</option>
<option value="Dominican Republic">Dominican Republic</option>
<option value="East Timor">East Timor</option>
<option value="Ecuador">Ecuador</option>
<option value="Egypt">Egypt</option>
<option value="El Salvador">El Salvador</option>
<option value="Equatorial Guinea">Equatorial Guinea</option>
<option value="Eritrea">Eritrea</option>
<option value="Estonia">Estonia</option>
<option value="Ethiopia">Ethiopia</option>
<option value="Falkland Islands">Falkland Islands (Malvinas)</option>
<option value="Faroe Islands">Faroe Islands</option>
<option value="Fiji">Fiji</option>
<option value="Finland">Finland</option>
<option value="France">France</option>
<option value="France Metropolitan">France, Metropolitan</option>
<option value="French Guiana">French Guiana</option>
<option value="French Polynesia">French Polynesia</option>
<option value="French Southern Territories">French Southern Territories</option>
<option value="Gabon">Gabon</option>
<option value="Gambia">Gambia</option>
<option value="Georgia">Georgia</option>
<option value="Germany">Germany</option>
<option value="Ghana">Ghana</option>
<option value="Gibraltar">Gibraltar</option>
<option value="Greece">Greece</option>
<option value="Greenland">Greenland</option>
<option value="Grenada">Grenada</option>
<option value="Guadeloupe">Guadeloupe</option>
<option value="Guam">Guam</option>
<option value="Guatemala">Guatemala</option>
<option value="Guinea">Guinea</option>
<option value="Guinea-Bissau">Guinea-Bissau</option>
<option value="Guyana">Guyana</option>
<option value="Haiti">Haiti</option>
<option value="Heard and McDonald Islands">Heard and Mc Donald Islands</option>
<option value="Holy See">Holy See (Vatican City State)</option>
<option value="Honduras">Honduras</option>
<option value="Hong Kong">Hong Kong</option>
<option value="Hungary">Hungary</option>
<option value="Iceland">Iceland</option>
<option value="India">India</option>
<option value="Indonesia">Indonesia</option>
<option value="Iran">Iran (Islamic Republic of)</option>
<option value="Iraq">Iraq</option>
<option value="Ireland">Ireland</option>
<option value="Israel">Israel</option>
<option value="Italy">Italy</option>
<option value="Jamaica">Jamaica</option>
<option value="Japan">Japan</option>
<option value="Jordan">Jordan</option>
<option value="Kazakhstan">Kazakhstan</option>
<option value="Kenya">Kenya</option>
<option value="Kiribati">Kiribati</option>
<option value="Democratic People's Republic of Korea">Korea, Democratic People's Republic of</option>
<option value="Korea">Korea, Republic of</option>
<option value="Kuwait">Kuwait</option>
<option value="Kyrgyzstan">Kyrgyzstan</option>
<option value="Lao">Lao People's Democratic Republic</option>
<option value="Latvia">Latvia</option>
<option value="Lebanon" selected>Lebanon</option>
<option value="Lesotho">Lesotho</option>
<option value="Liberia">Liberia</option>
<option value="Libyan Arab Jamahiriya">Libyan Arab Jamahiriya</option>
<option value="Liechtenstein">Liechtenstein</option>
<option value="Lithuania">Lithuania</option>
<option value="Luxembourg">Luxembourg</option>
<option value="Macau">Macau</option>
<option value="Macedonia">Macedonia, The Former Yugoslav Republic of</option>
<option value="Madagascar">Madagascar</option>
<option value="Malawi">Malawi</option>
<option value="Malaysia">Malaysia</option>
<option value="Maldives">Maldives</option>
<option value="Mali">Mali</option>
<option value="Malta">Malta</option>
<option value="Marshall Islands">Marshall Islands</option>
<option value="Martinique">Martinique</option>
<option value="Mauritania">Mauritania</option>
<option value="Mauritius">Mauritius</option>
<option value="Mayotte">Mayotte</option>
<option value="Mexico">Mexico</option>
<option value="Micronesia">Micronesia, Federated States of</option>
<option value="Moldova">Moldova, Republic of</option>
<option value="Monaco">Monaco</option>
<option value="Mongolia">Mongolia</option>
<option value="Montserrat">Montserrat</option>
<option value="Morocco">Morocco</option>
<option value="Mozambique">Mozambique</option>
<option value="Myanmar">Myanmar</option>
<option value="Namibia">Namibia</option>
<option value="Nauru">Nauru</option>
<option value="Nepal">Nepal</option>
<option value="Netherlands">Netherlands</option>
<option value="Netherlands Antilles">Netherlands Antilles</option>
<option value="New Caledonia">New Caledonia</option>
<option value="New Zealand">New Zealand</option>
<option value="Nicaragua">Nicaragua</option>
<option value="Niger">Niger</option>
<option value="Nigeria">Nigeria</option>
<option value="Niue">Niue</option>
<option value="Norfolk Island">Norfolk Island</option>
<option value="Northern Mariana Islands">Northern Mariana Islands</option>
<option value="Norway">Norway</option>
<option value="Oman">Oman</option>
<option value="Pakistan">Pakistan</option>
<option value="Palau">Palau</option>
<option value="Panama">Panama</option>
<option value="Papua New Guinea">Papua New Guinea</option>
<option value="Paraguay">Paraguay</option>
<option value="Peru">Peru</option>
<option value="Philippines">Philippines</option>
<option value="Pitcairn">Pitcairn</option>
<option value="Poland">Poland</option>
<option value="Portugal">Portugal</option>
<option value="Puerto Rico">Puerto Rico</option>
<option value="Qatar">Qatar</option>
<option value="Reunion">Reunion</option>
<option value="Romania">Romania</option>
<option value="Russia">Russian Federation</option>
<option value="Rwanda">Rwanda</option>
<option value="Saint Kitts and Nevis">Saint Kitts and Nevis</option> 
<option value="Saint LUCIA">Saint LUCIA</option>
<option value="Saint Vincent">Saint Vincent and the Grenadines</option>
<option value="Samoa">Samoa</option>
<option value="San Marino">San Marino</option>
<option value="Sao Tome and Principe">Sao Tome and Principe</option> 
<option value="Saudi Arabia">Saudi Arabia</option>
<option value="Senegal">Senegal</option>
<option value="Seychelles">Seychelles</option>
<option value="Sierra">Sierra Leone</option>
<option value="Singapore">Singapore</option>
<option value="Slovakia">Slovakia (Slovak Republic)</option>
<option value="Slovenia">Slovenia</option>
<option value="Solomon Islands">Solomon Islands</option>
<option value="Somalia">Somalia</option>
<option value="South Africa">South Africa</option>
<option value="South Georgia">South Georgia and the South Sandwich Islands</option>
<option value="Span">Spain</option>
<option value="SriLanka">Sri Lanka</option>
<option value="St. Helena">St. Helena</option>
<option value="St. Pierre and Miguelon">St. Pierre and Miquelon</option>
<option value="Sudan">Sudan</option>
<option value="Suriname">Suriname</option>
<option value="Svalbard">Svalbard and Jan Mayen Islands</option>
<option value="Swaziland">Swaziland</option>
<option value="Sweden">Sweden</option>
<option value="Switzerland">Switzerland</option>
<option value="Syria">Syrian Arab Republic</option>
<option value="Taiwan">Taiwan, Province of China</option>
<option value="Tajikistan">Tajikistan</option>
<option value="Tanzania">Tanzania, United Republic of</option>
<option value="Thailand">Thailand</option>
<option value="Togo">Togo</option>
<option value="Tokelau">Tokelau</option>
<option value="Tonga">Tonga</option>
<option value="Trinidad and Tobago">Trinidad and Tobago</option>
<option value="Tunisia">Tunisia</option>
<option value="Turkey">Turkey</option>
<option value="Turkmenistan">Turkmenistan</option>
<option value="Turks and Caicos">Turks and Caicos Islands</option>
<option value="Tuvalu">Tuvalu</option>
<option value="Uganda">Uganda</option>
<option value="Ukraine">Ukraine</option>
<option value="United Arab Emirates">United Arab Emirates</option>
<option value="United Kingdom">United Kingdom</option>
<option value="United States">United States</option>
<option value="United States Minor Outlying Islands">United States Minor Outlying Islands</option>
<option value="Uruguay">Uruguay</option>
<option value="Uzbekistan">Uzbekistan</option>
<option value="Vanuatu">Vanuatu</option>
<option value="Venezuela">Venezuela</option>
<option value="Vietnam">Viet Nam</option>
<option value="Virgin Islands (British)">Virgin Islands (British)</option>
<option value="Virgin Islands (U.S)">Virgin Islands (U.S.)</option>
<option value="Wallis and Futana Islands">Wallis and Futuna Islands</option>
<option value="Western Sahara">Western Sahara</option>
<option value="Yemen">Yemen</option>
<option value="Serbia">Serbia</option>
<option value="Zambia">Zambia</option>
<option value="Zimbabwe">Zimbabwe</option>
</select>

Answer 3

我的更好:)

<select name="country" class="form-control" id="country">
        <option value="0" label="Select a country ... " selected="selected">Select a country ... </option>
        <optgroup id="country-optgroup-Africa" label="Africa">
            <option value="DZ" label="Algeria">Algeria</option>
            <option value="AO" label="Angola">Angola</option>
            <option value="BJ" label="Benin">Benin</option>
            <option value="BW" label="Botswana">Botswana</option>
            <option value="BF" label="Burkina Faso">Burkina Faso</option>
            <option value="BI" label="Burundi">Burundi</option>
            <option value="CM" label="Cameroon">Cameroon</option>
            <option value="CV" label="Cape Verde">Cape Verde</option>
            <option value="CF" label="Central African Republic">Central African Republic</option>
            <option value="TD" label="Chad">Chad</option>
            <option value="KM" label="Comoros">Comoros</option>
            <option value="CG" label="Congo - Brazzaville">Congo - Brazzaville</option>
            <option value="CD" label="Congo - Kinshasa">Congo - Kinshasa</option>
            <option value="CI" label="Côte d’Ivoire">Côte d’Ivoire</option>
            <option value="DJ" label="Djibouti">Djibouti</option>
            <option value="EG" label="Egypt">Egypt</option>
            <option value="GQ" label="Equatorial Guinea">Equatorial Guinea</option>
            <option value="ER" label="Eritrea">Eritrea</option>
            <option value="ET" label="Ethiopia">Ethiopia</option>
            <option value="GA" label="Gabon">Gabon</option>
            <option value="GM" label="Gambia">Gambia</option>
            <option value="GH" label="Ghana">Ghana</option>
            <option value="GN" label="Guinea">Guinea</option>
            <option value="GW" label="Guinea-Bissau">Guinea-Bissau</option>
            <option value="KE" label="Kenya">Kenya</option>
            <option value="LS" label="Lesotho">Lesotho</option>
            <option value="LR" label="Liberia">Liberia</option>
            <option value="LY" label="Libya">Libya</option>
            <option value="MG" label="Madagascar">Madagascar</option>
            <option value="MW" label="Malawi">Malawi</option>
            <option value="ML" label="Mali">Mali</option>
            <option value="MR" label="Mauritania">Mauritania</option>
            <option value="MU" label="Mauritius">Mauritius</option>
            <option value="YT" label="Mayotte">Mayotte</option>
            <option value="MA" label="Morocco">Morocco</option>
            <option value="MZ" label="Mozambique">Mozambique</option>
            <option value="NA" label="Namibia">Namibia</option>
            <option value="NE" label="Niger">Niger</option>
            <option value="NG" label="Nigeria">Nigeria</option>
            <option value="RW" label="Rwanda">Rwanda</option>
            <option value="RE" label="Réunion">Réunion</option>
            <option value="SH" label="Saint Helena">Saint Helena</option>
            <option value="SN" label="Senegal">Senegal</option>
            <option value="SC" label="Seychelles">Seychelles</option>
            <option value="SL" label="Sierra Leone">Sierra Leone</option>
            <option value="SO" label="Somalia">Somalia</option>
            <option value="ZA" label="South Africa">South Africa</option>
            <option value="SD" label="Sudan">Sudan</option>
            <option value="SZ" label="Swaziland">Swaziland</option>
            <option value="ST" label="São Tomé and Príncipe">São Tomé and Príncipe</option>
            <option value="TZ" label="Tanzania">Tanzania</option>
            <option value="TG" label="Togo">Togo</option>
            <option value="TN" label="Tunisia">Tunisia</option>
            <option value="UG" label="Uganda">Uganda</option>
            <option value="EH" label="Western Sahara">Western Sahara</option>
            <option value="ZM" label="Zambia">Zambia</option>
            <option value="ZW" label="Zimbabwe">Zimbabwe</option>
        </optgroup>
        <optgroup id="country-optgroup-Americas" label="Americas">
            <option value="AI" label="Anguilla">Anguilla</option>
            <option value="AG" label="Antigua and Barbuda">Antigua and Barbuda</option>
            <option value="AR" label="Argentina">Argentina</option>
            <option value="AW" label="Aruba">Aruba</option>
            <option value="BS" label="Bahamas">Bahamas</option>
            <option value="BB" label="Barbados">Barbados</option>
            <option value="BZ" label="Belize">Belize</option>
            <option value="BM" label="Bermuda">Bermuda</option>
            <option value="BO" label="Bolivia">Bolivia</option>
            <option value="BR" label="Brazil">Brazil</option>
            <option value="VG" label="British Virgin Islands">British Virgin Islands</option>
            <option value="CA" label="Canada">Canada</option>
            <option value="KY" label="Cayman Islands">Cayman Islands</option>
            <option value="CL" label="Chile">Chile</option>
            <option value="CO" label="Colombia">Colombia</option>
            <option value="CR" label="Costa Rica">Costa Rica</option>
            <option value="CU" label="Cuba">Cuba</option>
            <option value="DM" label="Dominica">Dominica</option>
            <option value="DO" label="Dominican Republic">Dominican Republic</option>
            <option value="EC" label="Ecuador">Ecuador</option>
            <option value="SV" label="El Salvador">El Salvador</option>
            <option value="FK" label="Falkland Islands">Falkland Islands</option>
            <option value="GF" label="French Guiana">French Guiana</option>
            <option value="GL" label="Greenland">Greenland</option>
            <option value="GD" label="Grenada">Grenada</option>
            <option value="GP" label="Guadeloupe">Guadeloupe</option>
            <option value="GT" label="Guatemala">Guatemala</option>
            <option value="GY" label="Guyana">Guyana</option>
            <option value="HT" label="Haiti">Haiti</option>
            <option value="HN" label="Honduras">Honduras</option>
            <option value="JM" label="Jamaica">Jamaica</option>
            <option value="MQ" label="Martinique">Martinique</option>
            <option value="MX" label="Mexico">Mexico</option>
            <option value="MS" label="Montserrat">Montserrat</option>
            <option value="AN" label="Netherlands Antilles">Netherlands Antilles</option>
            <option value="NI" label="Nicaragua">Nicaragua</option>
            <option value="PA" label="Panama">Panama</option>
            <option value="PY" label="Paraguay">Paraguay</option>
            <option value="PE" label="Peru">Peru</option>
            <option value="PR" label="Puerto Rico">Puerto Rico</option>
            <option value="BL" label="Saint Barthélemy">Saint Barthélemy</option>
            <option value="KN" label="Saint Kitts and Nevis">Saint Kitts and Nevis</option>
            <option value="LC" label="Saint Lucia">Saint Lucia</option>
            <option value="MF" label="Saint Martin">Saint Martin</option>
            <option value="PM" label="Saint Pierre and Miquelon">Saint Pierre and Miquelon</option>
            <option value="VC" label="Saint Vincent and the Grenadines">Saint Vincent and the Grenadines</option>
            <option value="SR" label="Suriname">Suriname</option>
            <option value="TT" label="Trinidad and Tobago">Trinidad and Tobago</option>
            <option value="TC" label="Turks and Caicos Islands">Turks and Caicos Islands</option>
            <option value="VI" label="U.S. Virgin Islands">U.S. Virgin Islands</option>
            <option value="US" label="United States">United States</option>
            <option value="UY" label="Uruguay">Uruguay</option>
            <option value="VE" label="Venezuela">Venezuela</option>
        </optgroup>
        <optgroup id="country-optgroup-Asia" label="Asia">
            <option value="AF" label="Afghanistan">Afghanistan</option>
            <option value="AM" label="Armenia">Armenia</option>
            <option value="AZ" label="Azerbaijan">Azerbaijan</option>
            <option value="BH" label="Bahrain">Bahrain</option>
            <option value="BD" label="Bangladesh">Bangladesh</option>
            <option value="BT" label="Bhutan">Bhutan</option>
            <option value="BN" label="Brunei">Brunei</option>
            <option value="KH" label="Cambodia">Cambodia</option>
            <option value="CN" label="China">China</option>
            <option value="GE" label="Georgia">Georgia</option>
            <option value="HK" label="Hong Kong SAR China">Hong Kong SAR China</option>
            <option value="IN" label="India">India</option>
            <option value="ID" label="Indonesia">Indonesia</option>
            <option value="IR" label="Iran">Iran</option>
            <option value="IQ" label="Iraq">Iraq</option>
            <option value="IL" label="Israel">Israel</option>
            <option value="JP" label="Japan">Japan</option>
            <option value="JO" label="Jordan">Jordan</option>
            <option value="KZ" label="Kazakhstan">Kazakhstan</option>
            <option value="KW" label="Kuwait">Kuwait</option>
            <option value="KG" label="Kyrgyzstan">Kyrgyzstan</option>
            <option value="LA" label="Laos">Laos</option>
            <option value="LB" label="Lebanon">Lebanon</option>
            <option value="MO" label="Macau SAR China">Macau SAR China</option>
            <option value="MY" label="Malaysia">Malaysia</option>
            <option value="MV" label="Maldives">Maldives</option>
            <option value="MN" label="Mongolia">Mongolia</option>
            <option value="MM" label="Myanmar [Burma]">Myanmar [Burma]</option>
            <option value="NP" label="Nepal">Nepal</option>
            <option value="NT" label="Neutral Zone">Neutral Zone</option>
            <option value="KP" label="North Korea">North Korea</option>
            <option value="OM" label="Oman">Oman</option>
            <option value="PK" label="Pakistan">Pakistan</option>
            <option value="PS" label="Palestinian Territories">Palestinian Territories</option>
            <option value="YD" label="People's Democratic Republic of Yemen">People's Democratic Republic of Yemen</option>
            <option value="PH" label="Philippines">Philippines</option>
            <option value="QA" label="Qatar">Qatar</option>
            <option value="SA" label="Saudi Arabia">Saudi Arabia</option>
            <option value="SG" label="Singapore">Singapore</option>
            <option value="KR" label="South Korea">South Korea</option>
            <option value="LK" label="Sri Lanka">Sri Lanka</option>
            <option value="SY" label="Syria">Syria</option>
            <option value="TW" label="Taiwan">Taiwan</option>
            <option value="TJ" label="Tajikistan">Tajikistan</option>
            <option value="TH" label="Thailand">Thailand</option>
            <option value="TL" label="Timor-Leste">Timor-Leste</option>
            <option value="TR" label="Turkey">Turkey</option>
            <option value="TM" label="Turkmenistan">Turkmenistan</option>
            <option value="AE" label="United Arab Emirates">United Arab Emirates</option>
            <option value="UZ" label="Uzbekistan">Uzbekistan</option>
            <option value="VN" label="Vietnam">Vietnam</option>
            <option value="YE" label="Yemen">Yemen</option>
        </optgroup>
        <optgroup id="country-optgroup-Europe" label="Europe">
            <option value="AL" label="Albania">Albania</option>
            <option value="AD" label="Andorra">Andorra</option>
            <option value="AT" label="Austria">Austria</option>
            <option value="BY" label="Belarus">Belarus</option>
            <option value="BE" label="Belgium">Belgium</option>
            <option value="BA" label="Bosnia and Herzegovina">Bosnia and Herzegovina</option>
            <option value="BG" label="Bulgaria">Bulgaria</option>
            <option value="HR" label="Croatia">Croatia</option>
            <option value="CY" label="Cyprus">Cyprus</option>
            <option value="CZ" label="Czech Republic">Czech Republic</option>
            <option value="DK" label="Denmark">Denmark</option>
            <option value="DD" label="East Germany">East Germany</option>
            <option value="EE" label="Estonia">Estonia</option>
            <option value="FO" label="Faroe Islands">Faroe Islands</option>
            <option value="FI" label="Finland">Finland</option>
            <option value="FR" label="France">France</option>
            <option value="DE" label="Germany">Germany</option>
            <option value="GI" label="Gibraltar">Gibraltar</option>
            <option value="GR" label="Greece">Greece</option>
            <option value="GG" label="Guernsey">Guernsey</option>
            <option value="HU" label="Hungary">Hungary</option>
            <option value="IS" label="Iceland">Iceland</option>
            <option value="IE" label="Ireland">Ireland</option>
            <option value="IM" label="Isle of Man">Isle of Man</option>
            <option value="IT" label="Italy">Italy</option>
            <option value="JE" label="Jersey">Jersey</option>
            <option value="LV" label="Latvia">Latvia</option>
            <option value="LI" label="Liechtenstein">Liechtenstein</option>
            <option value="LT" label="Lithuania">Lithuania</option>
            <option value="LU" label="Luxembourg">Luxembourg</option>
            <option value="MK" label="Macedonia">Macedonia</option>
            <option value="MT" label="Malta">Malta</option>
            <option value="FX" label="Metropolitan France">Metropolitan France</option>
            <option value="MD" label="Moldova">Moldova</option>
            <option value="MC" label="Monaco">Monaco</option>
            <option value="ME" label="Montenegro">Montenegro</option>
            <option value="NL" label="Netherlands">Netherlands</option>
            <option value="NO" label="Norway">Norway</option>
            <option value="PL" label="Poland">Poland</option>
            <option value="PT" label="Portugal">Portugal</option>
            <option value="RO" label="Romania">Romania</option>
            <option value="RU" label="Russia">Russia</option>
            <option value="SM" label="San Marino">San Marino</option>
            <option value="RS" label="Serbia">Serbia</option>
            <option value="CS" label="Serbia and Montenegro">Serbia and Montenegro</option>
            <option value="SK" label="Slovakia">Slovakia</option>
            <option value="SI" label="Slovenia">Slovenia</option>
            <option value="ES" label="Spain">Spain</option>
            <option value="SJ" label="Svalbard and Jan Mayen">Svalbard and Jan Mayen</option>
            <option value="SE" label="Sweden">Sweden</option>
            <option value="CH" label="Switzerland">Switzerland</option>
            <option value="UA" label="Ukraine">Ukraine</option>
            <option value="SU" label="Union of Soviet Socialist Republics">Union of Soviet Socialist Republics</option>
            <option value="GB" label="United Kingdom">United Kingdom</option>
            <option value="VA" label="Vatican City">Vatican City</option>
            <option value="AX" label="Åland Islands">Åland Islands</option>
        </optgroup>
        <optgroup id="country-optgroup-Oceania" label="Oceania">
            <option value="AS" label="American Samoa">American Samoa</option>
            <option value="AQ" label="Antarctica">Antarctica</option>
            <option value="AU" label="Australia">Australia</option>
            <option value="BV" label="Bouvet Island">Bouvet Island</option>
            <option value="IO" label="British Indian Ocean Territory">British Indian Ocean Territory</option>
            <option value="CX" label="Christmas Island">Christmas Island</option>
            <option value="CC" label="Cocos [Keeling] Islands">Cocos [Keeling] Islands</option>
            <option value="CK" label="Cook Islands">Cook Islands</option>
            <option value="FJ" label="Fiji">Fiji</option>
            <option value="PF" label="French Polynesia">French Polynesia</option>
            <option value="TF" label="French Southern Territories">French Southern Territories</option>
            <option value="GU" label="Guam">Guam</option>
            <option value="HM" label="Heard Island and McDonald Islands">Heard Island and McDonald Islands</option>
            <option value="KI" label="Kiribati">Kiribati</option>
            <option value="MH" label="Marshall Islands">Marshall Islands</option>
            <option value="FM" label="Micronesia">Micronesia</option>
            <option value="NR" label="Nauru">Nauru</option>
            <option value="NC" label="New Caledonia">New Caledonia</option

        
      
    

Answer 4

这是一个以国家名称和 ISO 标准 alpha-2 代码作为值的国家的选择下拉列表 - 在一个数组中：

<select>
<option value="">Select Country</option>
<option value="['Nigeria','NG']">Nigeria</option>
<option value="['Afghanistan','AF']">Afghanistan</option>
<option value="['Ã…land Islands','AX']">Ã…land Islands</option>
<option value="['Albania','AL']">Albania</option>
<option value="['Algeria','DZ']">Algeria</option>
<option value="['American Samoa','AS']">American Samoa</option>
<option value="['Andorra','AD']">Andorra</option>
<option value="['Angola','AO']">Angola</option>
<option value="['Anguilla','AI']">Anguilla</option>
<option value="['Antarctica','AQ']">Antarctica</option>
<option value="['Antigua and Barbuda','AG']">Antigua and Barbuda</option>
<option value="['Argentina','AR']">Argentina</option>
<option value="['Armenia','AM']">Armenia</option>
<option value="['Aruba','AW']">Aruba</option>
<option value="['Australia','AU']">Australia</option>
<option value="['Austria','AT']">Austria</option>
<option value="['Azerbaijan','AZ']">Azerbaijan</option>
<option value="['Bahamas','BS']">Bahamas</option>
<option value="['Bahrain','BH']">Bahrain</option>
<option value="['Bangladesh','BD']">Bangladesh</option>
<option value="['Barbados','BB']">Barbados</option>
<option value="['Belarus','BY']">Belarus</option>
<option value="['Belgium','BE']">Belgium</option>
<option value="['Belize','BZ']">Belize</option>
<option value="['Benin','BJ']">Benin</option>
<option value="['Bermuda','BM']">Bermuda</option>
<option value="['Bhutan','BT']">Bhutan</option>
<option value="['Bolivia, Plurinational State of','BO']">"Bolivia, Plurinational State of"</option>
<option value="['Bonaire, Sint Eustatius and Saba','BQ']">"Bonaire, Sint Eustatius and Saba"</option>
<option value="['Bosnia and Herzegovina','BA']">Bosnia and Herzegovina</option>
<option value="['Botswana','BW']">Botswana</option>
<option value="['Bouvet Island','BV']">Bouvet Island</option>
<option value="['Brazil','BR']">Brazil</option>
<option value="['British Indian Ocean Territory','IO']">British Indian Ocean Territory</option>
<option value="['Brunei Darussalam','BN']">Brunei Darussalam</option>
<option value="['Bulgaria','BG']">Bulgaria</option>
<option value="['Burkina Faso','BF']">Burkina Faso</option>
<option value="['Burundi','BI']">Burundi</option>
<option value="['Cambodia','KH']">Cambodia</option>
<option value="['Cameroon','CM']">Cameroon</option>
<option value="['Canada','CA']">Canada</option>
<option value="['Cape Verde','CV']">Cape Verde</option>
<option value="['Cayman Islands','KY']">Cayman Islands</option>
<option value="['Central African Republic','CF']">Central African Republic</option>
<option value="['Chad','TD']">Chad</option>
<option value="['Chile','CL']">Chile</option>
<option value="['China','CN']">China</option>
<option value="['Christmas Island','CX']">Christmas Island</option>
<option value="['Cocos (Keeling) Islands','CC']">Cocos (Keeling) Islands</option>
<option value="['Colombia','CO']">Colombia</option>
<option value="['Comoros','KM']">Comoros</option>
<option value="['Congo','CG']">Congo</option>
<option value="['Congo, the Democratic Republic of the','CD']">"Congo, the Democratic Republic of the"</option>
<option value="['Cook Islands','CK']">Cook Islands</option>
<option value="['Costa Rica','CR']">Costa Rica</option>
<option value="['Côte d'Ivoire','CI']">Côte d'Ivoire</option>
<option value="['Croatia','HR']">Croatia</option>
<option value="['Cuba','CU']">Cuba</option>
<option value="['Curaçao','CW']">Curaçao</option>
<option value="['Cyprus','CY']">Cyprus</option>
<option value="['Czech Republic','CZ']">Czech Republic</option>
<option value="['Denmark','DK']">Denmark</option>
<option value="['Djibouti','DJ']">Djibouti</option>
<option value="['Dominica','DM']">Dominica</option>
<option value="['Dominican Republic','DO']">Dominican Republic</option>
<option value="['Ecuador','EC']">Ecuador</option>
<option value="['Egypt','EG']">Egypt</option>
<option value="['El Salvador','SV']">El Salvador</option>
<option value="['Equatorial Guinea','GQ']">Equatorial Guinea</option>
<option value="['Eritrea','ER']">Eritrea</option>
<option value="['Estonia','EE']">Estonia</option>
<option value="['Ethiopia','ET']">Ethiopia</option>
<option value="['Falkland Islands (Malvinas)','FK']">Falkland Islands (Malvinas)</option>
<option value="['Faroe Islands','FO']">Faroe Islands</option>
<option value="['Fiji','FJ']">Fiji</option>
<option value="['Finland','FI']">Finland</option>
<option value="['France','FR']">France</option>
<option value="['French Guiana','GF']">French Guiana</option>
<option value="['French Polynesia','PF']">French Polynesia</option>
<option value="['French Southern Territories','TF']">French Southern Territories</option>
<option value="['Gabon','GA']">Gabon</option>
<option value="['Gambia','GM']">Gambia</option>
<option value="['Georgia','GE']">Georgia</option>
<option value="['Germany','DE']">Germany</option>
<option value="['Ghana','GH']">Ghana</option>
<option value="['Gibraltar','GI']">Gibraltar</option>
<option value="['Greece','GR']">Greece</option>
<option value="['Greenland','GL']">Greenland</option>
<option value="['Grenada','GD']">Grenada</option>
<option value="['Guadeloupe','GP']">Guadeloupe</option>
<option value="['Guam','GU']">Guam</option>
<option value="['Guatemala','GT']">Guatemala</option>
<option value="['Guernsey','GG']">Guernsey</option>
<option value="['Guinea','GN']">Guinea</option>
<option value="['Guinea-Bissau','GW']">Guinea-Bissau</option>
<option value="['Guyana','GY']">Guyana</option>
<option value="['Haiti','HT']">Haiti</option>
<option value="['Heard Island and McDonald Islands','HM']">Heard Island and McDonald Islands</option>
<option value="['Holy See (Vatican City State)','VA']">Holy See (Vatican City State)</option>
<option value="['Honduras','HN']">Honduras</option>
<option value="['Hong Kong','HK']">Hong Kong</option>
<option value="['Hungary','HU']">Hungary</option>
<option value="['Iceland','IS']">Iceland</option>
<option value="['India','IN']">India</option>
<option value="['Indonesia','ID']">Indonesia</option>
<option value="['Iran, Islamic Republic of','IR']">"Iran, Islamic Republic of"</option>
<option value="['Iraq','IQ']">Iraq</option>
<option value="['Ireland','IE']">Ireland</option>
<option value="['Isle of Man','IM']">Isle of Man</option>
<option value="['Israel','IL']">Israel</option>
<option value="['Italy','IT']">Italy</option>
<option value="['Jamaica','JM']">Jamaica</option>
<option value="['Japan','JP']">Japan</option>
<option value="['Jersey','JE']">Jersey</option>
<option value="['Jordan','JO']">Jordan</option>
<option value="['Kazakhstan','KZ']">Kazakhstan</option>
<option value="['Kenya','KE']">Kenya</option>
<option value="['Kiribati','KI']">Kiribati</option>
<option value="['Korea, Democratic People's Republic of','KP']">"Korea, Democratic People's Republic of"</option>
<option value="['Korea, Republic of','KR']">"Korea, Republic of"</option>
<option value="['Kuwait','KW']">Kuwait</option>
<option value="[Kyrgyzstan','KG']">yrgyzstan</option>
<option value="['Lao People`s Democratic Republic','LA']">Lao People's Democratic Republic</option>
<option value="['Latvia','LV']">Latvia</option>
<option value="['Lebanon','LB']">Lebanon</option>
<option value="['Lesotho','LS']">Lesotho</option>
<option value="['Liberia','LR']">Liberia</option>
<option value="['Libya','LY']">Libya</option>
<option value="['Liechtenstein','LI']">Liechtenstein</option>
<option value="['Lithuania','LT']">Lithuania</option>
<option value="['Luxembourg','LU']">Luxembourg</option>
<option value="['Macao','MO']">Macao</option>
<option value="['Macedonia, the Former Yugoslav Republic of','MK']">"Macedonia, the Former Yugoslav Republic of"</option>
<option value="['Madagascar','MG']">Madagascar</option>
<option value="['Malawi','MW']">Malawi</option>
<option value="['Malaysia','MY']">Malaysia</option>
<option value="['Maldives','MV']">Maldives</option>
<option value="['Mali','ML']">Mali</option>
<option value="['Malta','MT']">Malta</option>
<option value="['Marshall Islands','MH']">Marshall Islands</option>
<option value="['Martinique','MQ']">Martinique</option>
<option value="['Mauritania','MR']">Mauritania</option>
<option value="['Mauritius','MU']">Mauritius</option>
<option value="['Mayotte','YT']">Mayotte</option>
<option value="['Mexico','MX']">Mexico</option>
<option value="['Micronesia, Federated States of','FM']">"Micronesia, Federated States of</option>
<option value="['Moldova, Republic of','MD']">"Moldova, Republic of"</option>
<option value="['Monaco','MC']">Monaco</option>
<option value="['Mongolia','MN']">Mongolia</option>
<option value="['Montenegro','ME']">Montenegro</option>
<option value="['Montserrat','MS']">Montserrat</option>
<option value="['Morocco','MA']">Morocco</option>
<option value="['Mozambique','MZ']">Mozambique</option>
<option value="['Myanmar','MM']">Myanmar</option>
<option value="['Namibia','NA']">Namibia</option>
<option value="['Nauru','NR']">Nauru</option>
<option value="['Nepal','NP']">Nepal</option>
<option value="['Netherlands','NL']">Netherlands</option>
<option value="['New Caledonia','NC']">New Caledonia</option>
<option value="['New Zealand','NZ']">New Zealand</option>
<option value="['Nicaragua','NI']">Nicaragua</option>
<option value="['Niger','NE']">Niger</option>
<option value="['Niue','NU']">Niue</option>
<option value="['Norfolk Island','NF']">Norfolk Island</option>
<option value="['Northern Mariana Islands','MP']">Northern Mariana Islands</option>
<option value="['Norway','NO']">Norway</option>
<option value="['Oman','OM']">Oman</option>
<option value="['Pakistan','PK']">Pakistan</option>
<option value="['Palau','PW']">Palau</option>
<option value="['Palestine, State of','PS']">"Palestine, State of"</option>
<option value="['Panama','PA']">Panama</option>
<option value="['Papua New Guinea','PG']">Papua New Guinea</option>
<option value="['Paraguay','PY']">Paraguay</option>
<option value="['Peru','PE']">Peru</option>
<option value="['Philippines','PH']">Philippines</option>
<option value="['Pitcairn','PN']">Pitcairn</option>
<option value="['Poland','PL']">Poland</option>
<option value="['Portugal','PT']">Portugal</option>
<option value="['Puerto Rico','PR']">Puerto Rico</option>
<option value="['Qatar','QA']">Qatar</option>
<option value="['Réunion','RE']">Réunion</option>
<option value="['Romania','RO']">Romania</option>
<option value="['Russian Federation','RU']">Russian Federation</option>
<option value="['Rwanda','RW']">Rwanda</option>
<option value="['Saint Barthélemy','BL']">Saint Barthélemy</option>
<option value="['Saint Helena','Ascension and Tristan da Cunha','SH']">"Saint Helena, Ascension and Tristan da Cunha"</option>
<option value="['Saint Kitts and Nevis','KN']">Saint Kitts and Nevis</option>
<option value="['Saint Lucia','LC']">Saint Lucia</option>
<option value="['Saint Martin (French part)','MF']">Saint Martin (French part)</option>
<option value="['Saint Pierre and Miquelon','PM']">Saint Pierre and Miquelon</option>
<option value="['Saint Vincent and the Grenadines','VC']">Saint Vincent and the Grenadines</option>
<option value="['Samoa','WS']">Samoa</option>
<option value="['San Marino','SM']">San Marino</option>
<option value="['Sao Tome and Principe','ST']">Sao Tome and Principe</option>
<option value="['Saudi Arabia','SA']">Saudi Arabia</option>
<option value="['Senegal','SN']">Senegal</option>
<option value="['Serbia','RS']">Serbia</option>
<option value="['Seychelles','SC']">Seychelles</option>
<option value="['Sierra Leone','SL']">Sierra Leone</option>
<option value="['Singapore','SG']">Singapore</option>
<option value="['Sint Maarten (Dutch part)','SX']">Sint Maarten (Dutch part)</option>
<option value="['Slovakia','SK']">Slovakia</option>
<option value="['Slovenia','SI']">Slovenia</option>
<option value="['Solomon Islands','SB']">Solomon Islands</option>
<option value="['Somalia','SO']">Somalia</option>
<option value="['South Africa','ZA']">South Africa</option>
<option value="['South Georgia and the South Sandwich Islands','GS']">South Georgia and the South Sandwich Islands</option>
<option value="['South Sudan','SS']">South Sudan</option>
<option value="['Spain','ES']">Spain</option>
<option value="['Sri Lanka','LK']">Sri Lanka</option>
<option value="['Sudan','SD']">Sudan</option>
<option value="['Suriname','SR']">Suriname</option>
<option value="['Svalbard and Jan Mayen','SJ']">Svalbard and Jan Mayen</option>
<option value="['Swaziland','SZ']">Swaziland</option>
<option value="['Sweden','SE']">Sweden</option>
<option value="['Switzerland','CH']">Switzerland</option>
<option value="['Syrian Arab Republic','SY']">Syrian Arab Republic</option>
<option value="['Taiwan, Province of China','TW']">"Taiwan, Province of China"</option>
<option value="['Tajikistan','TJ']">Tajikistan</option>
<option value="['Tanzania, United Republic of','TZ']">"Tanzania, United Republic of"</option>
<option value="['Thailand','TH']">Thailand</option>
<option value="['Timor-Leste','TL']">Timor-Leste</option>
<option value="['Togo','TG']">Togo</option>
<option value="['Tokelau','TK']">Tokelau</option>
<option value="['Tonga','TO']">Tonga</option>
<option value="['Trinidad and Tobago','TT']">Trinidad and Tobago</option>
<option value="['Tunisia','TN']">Tunisia</option>
<option value="['Turkey','TR']">Turkey</option>
<option value="['Turkmenistan','TM']">Turkmenistan</option>
<option value="['Turks and Caicos Islands','TC']">Turks and Caicos Islands</option>
<option value="['Tuvalu','TV']">Tuvalu</option>
<option value="['Uganda','UG']">Uganda</option>
<option value="['Ukraine','UA']">Ukraine</option>
<option value="['United Arab Emirates','AE']">United Arab Emirates</option>
<option value="['United Kingdom','GB']">United Kingdom</option>
<option value="['United States','US']">United States</option>
<option value="['United States Minor Outlying Islands','UM']">United States Minor Outlying Islands</option>
<option value="['Uruguay','UY']">Uruguay</option>
<option value="['Uzbekistan','UZ']">Uzbekistan</option>
<option value="['Vanuatu','VU']">Vanuatu</option>
<option value="['Venezuela, Bolivarian Republic of','VE']">"Venezuela, Bolivarian Republic of"</option>
<option value="['Viet Nam','VN']">Viet Nam</option>
<option value="['Virgin Islands, British','VG']">"Virgin Islands, British"</option>
<option value="['Virgin Islands, U.S.','VI']">"Virgin Islands, U.S."</option>
<option value="['Wallis and Futuna','WF']">Wallis and Futuna</option>
<option value="['Western Sahara','EH']">Western Sahara</option>
<option value="['Yemen','YE']">Yemen</option>
<option value="['Zambia','ZM']">Zambia</option>
<option value="['Zimbabwe','ZW']">Zimbabwe</option>
</select>

Answer 5

https://jsfiddle.net/paulhodel/aqfbp3wd/2/

\n\n

<html>\n<script src="https://bossanova.uk/jsuites/v3/jsuites.js"></script>\n<link rel="stylesheet" href="https://bossanova.uk/jsuites/v3/jsuites.css" type="text/css" />\n\n<div id="dropdown"></div>\n\n<script>\nvar countries = [\n    { "text": "Afghanistan", "value": "AF" },\n    { "text": "\xc3\x85land Islands", "value": "AX" },\n    { "text": "Albania", "value": "AL" },\n    { "text": "Algeria", "value": "DZ" },\n    { "text": "American Samoa", "value": "AS" },\n    { "text": "Andorra", "value": "AD" },\n    { "text": "Angola", "value": "AO" },\n    { "text": "Anguilla", "value": "AI" },\n    { "text": "Antarctica", "value": "AQ" },\n    { "text": "Antigua and Barbuda", "value": "AG" },\n    { "text": "Argentina", "value": "AR" },\n    { "text": "Armenia", "value": "AM" },\n    { "text": "Aruba", "value": "AW" },\n    { "text": "Australia", "value": "AU" },\n    { "text": "Austria", "value": "AT" },\n    { "text": "Azerbaijan", "value": "AZ" },\n    { "text": "Bahamas", "value": "BS" },\n    { "text": "Bahrain", "value": "BH" },\n    { "text": "Bangladesh", "value": "BD" },\n    { "text": "Barbados", "value": "BB" },\n    { "text": "Belarus", "value": "BY" },\n    { "text": "Belgium", "value": "BE" },\n    { "text": "Belize", "value": "BZ" },\n    { "text": "Benin", "value": "BJ" },\n    { "text": "Bermuda", "value": "BM" },\n    { "text": "Bhutan", "value": "BT" },\n    { "text": "Bolivia", "value": "BO" },\n    { "text": "Bosnia and Herzegovina", "value": "BA" },\n    { "text": "Botswana", "value": "BW" },\n    { "text": "Bouvet Island", "value": "BV" },\n    { "text": "Brazil", "value": "BR" },\n    { "text": "British Indian Ocean Territory", "value": "IO" },\n    { "text": "Brunei Darussalam", "value": "BN" },\n    { "text": "Bulgaria", "value": "BG" },\n    { "text": "Burkina Faso", "value": "BF" },\n    { "text": "Burundi", "value": "BI" },\n    { "text": "Cambodia", "value": "KH" },\n    { "text": "Cameroon", "value": "CM" },\n    { "text": "Canada", "value": "CA" },\n    { "text": "Cape Verde", "value": "CV" },\n    { "text": "Cayman Islands", "value": "KY" },\n    { "text": "Central African Republic", "value": "CF" },\n    { "text": "Chad", "value": "TD" },\n    { "text": "Chile", "value": "CL" },\n    { "text": "China", "value": "CN" },\n    { "text": "Christmas Island", "value": "CX" },\n    { "text": "Cocos (Keeling) Islands", "value": "CC" },\n    { "text": "Colombia", "value": "CO" },\n    { "text": "Comoros", "value": "KM" },\n    { "text": "Congo", "value": "CG" },\n    { "text": "Congo, The Democratic Republic of the", "value": "CD" },\n    { "text": "Cook Islands", "value": "CK" },\n    { "text": "Costa Rica", "value": "CR" },\n    { "text": "Cote D\'Ivoire", "value": "CI" },\n    { "text": "Croatia", "value": "HR" },\n    { "text": "Cuba", "value": "CU" },\n    { "text": "Cyprus", "value": "CY" },\n    { "text": "Czech Republic", "value": "CZ" },\n    { "text": "Denmark", "value": "DK" },\n    { "text": "Djibouti", "value": "DJ" },\n    { "text": "Dominica", "value": "DM" },\n    { "text": "Dominican Republic", "value": "DO" },\n    { "text": "Ecuador", "value": "EC" },\n    { "text": "Egypt", "value": "EG" },\n    { "text": "El Salvador", "value": "SV" },\n    { "text": "Equatorial Guinea", "value": "GQ" },\n    { "text": "Eritrea", "value": "ER" },\n    { "text": "Estonia", "value": "EE" },\n    { "text": "Ethiopia", "value": "ET" },\n    { "text": "Falkland Islands (Malvinas)", "value": "FK" },\n    { "text": "Faroe Islands", "value": "FO" },\n    { "text": "Fiji", "value": "FJ" },\n    { "text": "Finland", "value": "FI" },\n    { "text": "France", "value": "FR" },\n    { "text": "French Guiana", "value": "GF" },\n    { "text": "French Polynesia", "value": "PF" },\n    { "text": "French Southern Territories", "value": "TF" },\n    { "text": "Gabon", "value": "GA" },\n    { "text": "Gambia", "value": "GM" },\n    { "text": "Georgia", "value": "GE" },\n    { "text": "Germany", "value": "DE" },\n    { "text": "Ghana", "value": "GH" },\n    { "text": "Gibraltar", "value": "GI" },\n    { "text": "Greece", "value": "GR" },\n    { "text": "Greenland", "value": "GL" },\n    { "text": "Grenada", "value": "GD" },\n    { "text": "Guadeloupe", "value": "GP" },\n    { "text": "Guam", "value": "GU" },\n    { "text": "Guatemala", "value": "GT" },\n    { "text": "Guernsey", "value": "GG" },\n    { "text": "Guinea", "value": "GN" },\n    { "text": "Guinea-Bissau", "value": "GW" },\n    { "text": "Guyana", "value": "GY" },\n    { "text": "Haiti", "value": "HT" },\n    { "text": "Heard Island and Mcdonald Islands", "value": "HM" },\n    { "text": "Holy See (Vatican City State)", "value": "VA" },\n    { "text": "Honduras", "value": "HN" },\n    { "text": "Hong Kong", "value": "HK" },\n    { "text": "Hungary", "value": "HU" },\n    { "text": "Iceland", "value": "IS" },\n    { "text": "India", "value": "IN" },\n    { "text": "Indonesia", "value": "ID" },\n    { "text": "Iran, Islamic Republic Of", "value": "IR" },\n    { "text": "Iraq", "value": "IQ" },\n    { "text": "Ireland", "value": "IE" },\n    { "text": "Isle of Man", "value": "IM" },\n    { "text": "Israel", "value": "IL" },\n    { "text": "Italy", "value": "IT" },\n    { "text": "Jamaica", "value": "JM" },\n    { "text": "Japan", "value": "JP" },\n    { "text": "Jersey", "value": "JE" },\n    { "text": "Jordan", "value": "JO" },\n    { "text": "Kazakhstan", "value": "KZ" },\n    { "text": "Kenya", "value": "KE" },\n    { "text": "Kiribati", "value": "KI" },\n    { "text": "Korea, Democratic People\'S Republic of", "value": "KP" },\n    { "text": "Korea, Republic of", "value": "KR" },\n    { "text": "Kuwait", "value": "KW" },\n    { "text": "Kyrgyzstan", "value": "KG" },\n    { "text": "Lao People\'S Democratic Republic", "value": "LA" },\n    { "text": "Latvia", "value": "LV" },\n    { "text": "Lebanon", "value": "LB" },\n    { "text": "Lesotho", "value": "LS" },\n    { "text": "Liberia", "value": "LR" },\n    { "text": "Libyan Arab Jamahiriya", "value": "LY" },\n    { "text": "Liechtenstein", "value": "LI" },\n    { "text": "Lithuania", "value": "LT" },\n    { "text": "Luxembourg", "value": "LU" },\n    { "text": "Macao", "value": "MO" },\n    { "text": "Macedonia, The Former Yugoslav Republic of", "value": "MK" },\n    { "text": "Madagascar", "value": "MG" },\n    { "text": "Malawi", "value": "MW" },\n    { "text": "Malaysia", "value": "MY" },\n    { "text": "Maldives", "value": "MV" },\n    { "text": "Mali", "value": "ML" },\n    { "text": "Malta", "value": "MT" },\n    { "text": "Marshall Islands", "value": "MH" },\n    { "text": "Martinique", "value": "MQ" },\n    { "text": "Mauritania", "value": "MR" },\n    { "text": "Mauritius", "value": "MU" },\n    { "text": "Mayotte", "value": "YT" },\n    { "text": "Mexico", "value": "MX" },\n    { "text": "Micronesia, Federated States of", "value": "FM" },\n    { "text": "Moldova, Republic of", "value": "MD" },\n    { "text": "Monaco", "value": "MC" },\n    { "text": "Mongolia", "value": "MN" },\n    { "text": "Montserrat", "value": "MS" },\n    { "text": "Morocco", "value": "MA" },\n    { "text": "Mozambique", "value": "MZ" },\n    { "text": "Myanmar", "value": "MM" },\n    { "text": "Namibia", "value": "NA" },\n    { "text": "Nauru", "value": "NR" },\n    { "text": "Nepal", "value": "NP" },\n    { "text": "Netherlands", "value": "NL" },\n    { "text": "Netherlands Antilles", "value": "AN" },\n    { "text": "New Caledonia", "value": "NC" },\n    { "text": "New Zealand", "value": "NZ" },\n    { "text": "Nicaragua", "value": "NI" },\n    { "text": "Niger", "value": "NE" },\n    { "text": "Nigeria", "value": "NG" },\n    { "text": "Niue", "value": "NU" },\n    { "text": "Norfolk Island", "value": "NF" },\n    { "text": "Northern Mariana Islands", "value": "MP" },\n    { "text": "Norway", "value": "NO" },\n    { "text": "Oman", "value": "OM" },\n    { "text": "Pakistan", "value": "PK" },\n    { "text": "Palau", "value": "PW" },\n    { "text": "Palestinian Territory, Occupied", "value": "PS" },\n    { "text": "Panama", "value": "PA" },\n    { "text": "Papua New Guinea", "value": "PG" },\n    { "text": "Paraguay", "value": "PY" },\n    { "text": "Peru", "value": "PE" },\n    { "text": "Philippines", "value": "PH" },\n    { "text": "Pitcairn", "value": "PN" },\n    { "text": "Poland", "value": "PL" },\n    { "text": "Portugal", "value": "PT" },\n    { "text": "Puerto Rico", "value": "PR" },\n    { "text": "Qatar", "value": "QA" },\n    { "text": "Reunion", "value": "RE" },\n    { "text": "Romania", "value": "RO" },\n    { "text": "Russian Federation", "value": "RU" },\n    { "text": "RWANDA", "value": "RW" },\n    { "text": "Saint Helena", "value": "SH" },\n    { "text": "Saint Kitts and Nevis", "value": "KN" },\n    { "text": "Saint Lucia", "value": "LC" },\n    { "text": "Saint Pierre and Miquelon", "value": "PM" },\n    { "text": "Saint Vincent and the Grenadines", "value": "VC" },\n    { "text": "Samoa", "value": "WS" },\n    { "text": "San Marino", "value": "SM" },\n    { "text": "Sao Tome and Principe", "value": "ST" },\n    { "text": "Saudi Arabia", "value": "SA" },\n    { "text": "Senegal", "value": "SN" },\n    { "text": "Serbia and Montenegro", "value": "CS" },\n    { "text": "Seychelles", "value": "SC" },\n    { "text": "Sierra Leone", "value": "SL" },\n    { "text": "Singapore", "value": "SG" },\n    { "text": "Slovakia", "value": "SK" },\n    { "text": "Slovenia", "value": "SI" },\n    { "text": "Solomon Islands", "value": "SB" },\n    { "text": "Somalia", "value": "SO" },\n    { "text": "South Africa", "value": "ZA" },\n    { "text": "South Georgia and the South Sandwich Islands", "value": "GS" },\n    { "text": "Spain", "value": "ES" },\n    { "text": "Sri Lanka", "value": "LK" },\n    { "text": "Sudan", "value": "SD" },\n    { "text": "Suriname", "value": "SR" },\n    { "text": "Svalbard and Jan Mayen", "value": "SJ" },\n    { "text": "Swaziland", "value": "SZ" },\n    { "text": "Sweden", "value": "SE" },\n    { "text": "Switzerland", "value": "CH" },\n    { "text": "Syrian Arab Republic", "value": "SY" },\n    { "text": "Taiwan, Province of China", "value": "TW" },\n    { "text": "Tajikistan", "value": "TJ" },\n    { "text": "Tanzania, United Republic of", "value": "TZ" },\n    { "text": "Thailand", "value": "TH" },\n    { "text": "Timor-Leste", "value": "TL" },\n    { "text": "Togo", "value": "TG" },\n    { "text": "Tokelau", "value": "TK" },\n    { "text": "Tonga", "value": "TO" },\n    { "text": "Trinidad and Tobago", "value": "TT" },\n    { "text": "Tunisia", "value": "TN" },\n    { "text": "Turkey", "value": "TR" },\n    { "text": "Turkmenistan", "value": "TM" },\n    { "text": "Turks and Caicos Islands", "value": "TC" },\n    { "text": "Tuvalu", "value": "TV" },\n    { "text": "Uganda", "value": "UG" },\n    { "text": "Ukraine", "value": "UA" },\n    { "text": "United Arab Emirates", "value": "AE" },\n    { "text": "United Kingdom", "value": "GB" },\n    { "text": "United States", "value": "US" },\n    { "text": "United States Minor Outlying Islands", "value": "UM" },\n    { "text": "Uruguay", "value": "UY" },\n    { "text": "Uzbekistan", "value": "UZ" },\n    { "text": "Vanuatu", "value": "VU" },\n    { "text": "Venezuela", "value": "VE" },\n    { "text": "Viet Nam", "value": "VN" },\n    { "text": "Virgin Islands, British", "value": "VG" },\n    { "text": "Virgin Islands, U.S.", "value": "VI" },\n    { "text": "Wallis and Futuna", "value": "WF" },\n    { "text": "Western Sahara", "value": "EH" },\n    { "text": "Yemen", "value": "YE" },\n    { "text": "Zambia", "value": "ZM" },\n    { "text": "Zimbabwe", "value": "ZW" }\n];\n\nfor (var i = 0; i < countries.length; i++) {\n    countries[i].image = \'https://www.countryflags.io/\' + countries[i].value.toLowerCase() + \'/shiny/24.png\';\n}\n\njSuites.dropdown(document.getElementById(\'dropdown\'), {\n    data: countries,\n    autocomplete: true,\n    multiple: true,\n    width: \'280px\',\n});\n</script>\n</html>\n

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