如何通过ajax动态为下拉框添加数据求代码

<select class="dosm">

</select>

<script>

        //这里用到了JQuery

    $.ajax({

        url:"请求的url路径",

           type:"post",  //post请求

           data: {}   //  后台请求数据

           success:function(data){

                //请求成功之后填充数据

//可以把data看成一个数组

                for(var i =0i<data.lengthi++){

                    $(".dosm").append("<option>" + data[i]+ "</option>")

                }

            }

    })

</script>

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