前端获取下拉选的值

$(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>