省市选择(基于zepto.js)

效果如下：

 　　　　　　　　　　<div class="clList overflow-h mt75">
                     <select class="pull-left cl-35 select01" id="cityParent">
                         <option>请选择省</option>
                     </select>
                     <select class="pull-left cl-35 select02" id="city">
                         <option>请选择市</option>
                     </select>
                 </div>

 //测试数据
 var _json = [ {
             "areas" : [ {
                 "name" : "东城区"
             }, {
                 "name" : "西城区"
             }, {
                 "name" : "崇文区"
             }, {
                 "name" : "宣武区"
             }, {
                 "name" : "昌平区"
             }, {
                 "name" : "朝阳区"
             }, {
                 "name" : "海淀区"
             }, {
                 "name" : "丰台区"
             }, {
                 "name" : "石景山区"
             }, {
                 "name" : "门头沟区"
             }, {
                 "name" : "房山区"
             }, {
                 "name" : "通州区"
             }, {
                 "name" : "顺义区"
             }, {
                 "name" : "大兴区"
             }, {
                 "name" : "平谷区"
             }, {
                 "name" : "怀柔区"
             }, {
                 "name" : "密云县"
             }, {
                 "name" : "延庆县"
             } ],
             "name" : "北京市"
         },{
             "areas" : [ {
                 "name" : "合肥市"
             }, {
                 "name" : "滁州市"
             }, {
                 "name" : "蚌埠市"
             }, {
                 "name" : "芜湖市"
             }, {
                 "name" : "淮南市"
             }, {
                 "name" : "淮北市"
             }, {
                 "name" : "马鞍山市"
             }, {
                 "name" : "安庆市"
             }, {
                 "name" : "宿州市"
             }, {
                 "name" : "阜阳市"
             }, {
                 "name" : "亳州市"
             }, {
                 "name" : "黄山市"
             }, {
                 "name" : "铜陵市"
             }, {
                 "name" : "宣城市"
             }, {
                 "name" : "六安市"
             }, {
                 "name" : "池州市"
             } ],
             "name" : "安徽省"
         }, {
             "areas" : [ {
                 "name" : "福州市"
             }, {
                 "name" : "厦门市"
             }, {
                 "name" : "宁德市"
             }, {
                 "name" : "莆田市"
             }, {
                 "name" : "泉州市"
             }, {
                 "name" : ">"
             }, {
                 "name" : "漳州市"
             }, {
                 "name" : "龙岩市"
             }, {
                 "name" : "三明市"
             }, {
                 "name" : "南平市"
             } ],
             "name" : "福建省"
         }, {
             "areas" : [ {
                 "name" : "兰州市"
             }, {
                 "name" : "临夏州"
             }, {
                 "name" : "定西市"
             }, {
                 "name" : "平凉市"
             }, {
                 "name" : "庆阳市"
             }, {
                 "name" : "武威市"
             }, {
                 "name" : "金昌市"
             }, {
                 "name" : "张掖市"
             }, {
                 "name" : "酒泉市"
             }, {
                 "name" : "嘉峪关市"
             }, {
                 "name" : "天水市"
             }, {
                 "name" : "陇南市"
             }, {
                 "name" : "甘南州"
             }, {
                 "name" : "白银市"
             } ],
             "name" : "甘肃省"
         }];
         function loadCityPar() {
             var cityPar = '<option value="0">请选择省</option>';
             var lenPar = _json.length;   //省市数量
             for(var i=0; i<lenPar; i++){
                 var n = i + 1;
                 cityPar += '<option value="'+n+'">'+_json[i].name+'</option>';

             }
             $('#cityParent').html(cityPar);
         }
         loadCityPar();

         $(page).on('change','#cityParent',function () {
             var index = $('#cityParent option').not(function(){ return !this.selected }).index();
             var i = index - 1;
             if(i >= 0){
                 var city = '<option value="0">请选择市</option>';
                 var len = _json[i].areas.length;
                 for(var j=0; j<len; j++){
                     var m = j + 1;
                     city += '<option value="'+m+'">'+_json[i].areas[j].name+'</option>';
                 }
                 $('#city').html(city);
             }
         });

 .wgyHospital .select01,.wgyHospital .select02{ padding-left:.3rem; padding-right:.3rem; height:1.6rem; line-height:1.6rem; border:1px solid #ccc; text-align:center;}
 .wgyHospital .select01{ border-radius:.75rem 0 0 .75rem;}
 .wgyHospital .select02{ border-radius:0 .75rem .75rem 0; border-left:none;}