jQuery请求

$.ajax({
url:'user/loadRole',
type:'post',
data: $form.serialize(),
dataType:'json',
async:false,
beforeSend: function(XMLHttpRequest) {
//数据效验Coder
},
success:function(data){
$.each(data.result,function(i,v){
$("#my_multi_select3").append("<option>"+v.discription+"</option>");
});

//退出函数function
return true;
},
error:function(XMLHttpRequest,textStatus,errorThrown){
//弹窗显示
}
});

//终止表单提交
XMLHttpRequest.abort();