在html中选择框Onchange事件的问题

Question

<script>
    function options(){
       alert("asdfasdf");
    }
</script>
<select type="selectbox" name="crPaymentOption" id ="crPaymentOption"onchange="options()"/>
    <option selected="" value="--">--</option>
    <option value="Check">Check</option>
    <option value="Credit Card">Credit Card</option>
    <option value="Cash">Cash</option>
</select>

当我更改选择下拉列表的选项时,警报未触发.谁可以帮我这个事？？

Answer 1

更改方法名称,并在onchange属性前留一个空格:

<script>
    function optionsAlert(){
       alert("asdfasdf");
    }
</script>
<select name="crPaymentOption" id="crPaymentOption" onchange="optionsAlert()"/>
    <option selected="" value="--">--</option>
    <option value="Check">Check</option>
    <option value="Credit Card">Credit Card</option>
    <option value="Cash">Cash</option>
</select>