微信小程序省市县三级联动选择器

### 使用方法 自行改成对应的 require 路径 省市区三级数据[官方](http://www.stats.gov.cn/tjsj/tjbz/xzqhdm/201504/t20150415_712722.html)      ```js var citySelect = require('../../../ui/citySelect/citySelect.js') onload: function(){ var that = this citySelect.init(that) } ``` ```css @import '../../../ui/citySelect/citySelect.css'; ``` ```html <import src="/ui/citySelect/citySelect.wxml" /> <template is="addressPicker" data="{{ ...city }}"/> ```