小编iva*_*anz的帖子

我试图通过JavaScript显示图像,但我无法弄清楚如何做到这一点.我有以下

function image(a,b,c)
{
  this.link=a;
  this.alt=b;
  this.thumb=c;
}

function show_image()
{
  document.write("img src="+this.link+">");
}

image1=new image("img/img1.jpg","dsfdsfdsfds","thumb/img3");

在HTML中

<p><input type="button" value="Vytvor" onclick="show_image()" > </p>

我无法弄清楚我应该把它放在哪里image1.show_image();.

HTML？或者别的地方...

我有问题,当XML文件中有UTF-8字符时,我的DOM解析器无法加载文件现在,我知道我必须给他指令读取utf-8,但我不知道如何把它在我的代码中,它是:

File xmlFile = new File(fileName);
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(xmlFile);
doc.getDocumentElement().normalize();

我知道有方法setencoding(),但我不知道在我的代码中把它放在哪里...

我试图测量StAX和DOM创建两个相同文档所需的时间.我不知道为什么DOM在创建XML方面更快.也许我的StAX编写器代码不是很好.所以这里是StAX(更长的代码)

  public static final int pocet =100000;

try {

  String encoding = "UTF-8";
  XMLOutputFactory f = XMLOutputFactory.newInstance();
  XMLStreamWriter w = f.createXMLStreamWriter(
                      new FileOutputStream(subor),
                      encoding);
  w.writeStartDocument(encoding, "1.0");
  w.writeCharacters("\r\n");
  w.writeStartElement("Noviny");        
  for (int i = 1;  i <= pocet;  i++) {
    w.writeCharacters("\r\n  ");
    w.writeStartElement("Autor");
    w.writeCharacters("\r\n  ");
    w.writeStartElement("Id"); 
    String ID = Integer.toString(i);
    w.writeCharacters(ID);
    w.writeEndElement();
    w.writeCharacters("\r\n  ");
    w.writeStartElement("Meno");
    w.writeCharacters("Autor"+i);
    w.writeEndElement();
    w.writeCharacters("\r\n  ");
    w.writeStartElement("Email");
    w.writeCharacters("Autor"+i+"@email.com");
    w.writeEndElement();
    w.writeCharacters("\r\n  ");
    w.writeStartElement("Tel_cislo");
    w.writeAttribute("typ", "pevna");
    w.writeCharacters("+4219");
    w.writeEndElement();
    w.writeCharacters("\r\n  ");
    w.writeStartElement("plat");

    w.writeCharacters("5000");
    w.writeEndElement();
    w.writeCharacters("\r\n  ");        
    w.writeEndElement(); 
    w.writeCharacters("\r\n");



  }
  w.writeCharacters("\r\n");
  w.writeEndElement();        
  w.writeCharacters("\r\n"); …

我正在尝试创建某种菜单.我已设法创建"折叠"ul元素,但无法弄清楚如何设置ul元素在加载时隐藏

         <ul>
        <li class="error">Displayed</li>
        <ul>
           <li class="error">Hidden</li>
              <ul>
                 <li class="error">
                    <a href="test.html">Hidden</a>
                 </li>
              </ul>              
        </ul>
    </ul>

jQuery的

$(".error").click(function () {
$(this).next("ul").toggle("slow");});

这是我的样本与崩溃的ul元素http://jsbin.com/povafivu/1/edit?html,js,output

谢谢