jQuery复制选择框到另外一个选择框
点击按钮后,把左边选择框的内容添加到右边的选择框。

$(function(){
$(“#select1″).dblclick(function(){
var $options = $(‘#select1 option:selected’);
$options.clone().appendTo(‘#select2′);
});
})
<select id=”select1″ size=”4″>
<option value=”1″>选项一</option>
<option value=”2″>选项二</option>
<option value=”3″>选项三</option>
<option value=”4″>选项四</option>
</select><select id=”select2″ size=”4″>
</select>
<option value=”1″>选项一</option>
<option value=”2″>选项二</option>
<option value=”3″>选项三</option>
<option value=”4″>选项四</option>
</select><select id=”select2″ size=”4″>
</select>
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