<select id="select">

 <!--下拉框数据动态加载-->

 </select>

$(document).ready(function () { //此处页面打开即请求api

                $.ajax({

                    type:'GET',

                    url:"{:url('Room/houseData')}",

                    contentType: "application/json; charset=utf-8",

                    async : true ,

                    dataType: "json",

                    success: function (date) {

                        var optionstring = "";

                        for (var j = 0; j < date.length;j++) {

                            console.log(date[j].house_name);

                            console.log(date[j].id);

                            optionstring += "<option value=\"" + date[j].id + "\" >" +date[j].house_name+" " + "</option>";

                            $("#select").html("<option value='0'>请选择...</option> "+optionstring);

                        }

                    },

                    error: function (msg) {

                        layer.msg('数据出错了!!');

                    }

                });

            });