$(function () { document.getElementById('CategoryType').addEventListener('change',function(){ alert("当前选项是:"+this.value); },false); })
<div style="margin-bottom:20px;height: 200px;"> <select id="CategoryType" name="name" style="width:100%;"> <option value="AL">请选择经营类别</option> <option value="461">汽车用品</option>
</select> </div>