Question

怎么通过 JavaScript 删除 disabled 值

Answer 1

用jquery
$("#select1").removeAttr("disabled ","disabled ")
<select name="" id="select1" disabled="disabled">
<option id="" value="">--请选择--</option>
<option id="" value="">一</option>
<option id="" value="">二</option>
<option id="" value="">三</option>
</select>

Answer 2

JavaScript：
<input type="text" disabled="disabled" id="txt1" value="11" />11
<script type="text/javascript" language="JavaScript">
document.getElementById('txt1').disabled=false;
</script>