Ajax会自动将返回的对象属性首字母转化为小写

$.ajax({
                type: "post",url: "<%=basePath%>reserd‘f‘w/liswe‘f‘wd.do",data: {‘s_id‘:s_id},dataType: "json",cahe: false,success: function(data){
                    var ks = data.ks;
                    for (var i = 0; i < ks.length; i++) {
                        var option = "<option value="+ks[i].k_ID+">"+ks[i].k_NAME+"</option>";
                        $("#k_id").append(option);
                        $(‘.chosen-select‘).trigger("chosen:updated");//更新组件
                    }
                },error: function(){
                    bootbox.alert("系统异常，请联系管理员！！！");
                }
            });