import { Picker } from ‘mint-ui‘; //前提是npm install mint-ui -SVue.component(Picker.name, Picker);

 <mt-picker :slots="addressSlots" class="picker" @change="onAddressChange" :visible-item-count="5" ></mt-picker ><mt-picker :slots="streetSlots" ref="picker" class="picker" @change="onStreetChange" :visible-item-count="5" ></mt-picker >上门服务地址:{{ addressProvince }} {{ addressCity }}

<script type="text/ecmascript-6" >   import s from ‘../../statics/mobile/json/address4.json‘   export default {    name: ‘address‘,    data () {      return {        companyName:‘‘,        addressSlots: [          {            flex: 1,            defaultIndex: 1,            values: Object.keys(s),            className: ‘slot1‘,            textAlign: ‘center‘          }, {            divider: true,            content: ‘-‘,            className: ‘slot2‘          }, {            flex: 1,            values: [],            className: ‘slot3‘,            textAlign: ‘center‘          }, {            divider: true,            content: ‘-‘,            className: ‘slot4‘          }, {            flex: 1,            values: [],            className: ‘slot5‘,            textAlign: ‘center‘          }        ],        streetSlots: [          {            flex: 1,            values: [],            className: ‘slot1‘,            textAlign: ‘center‘          }        ],        addressProvince: ‘省‘,        addressCity: ‘市‘,        addressXian: ‘区‘,        addressStreet: ‘街道‘,              }    },    methods: {           onAddressChange(picker, values) {        let sheng = Object.keys(s);        let shi = Object.keys(s[values[0]]);        let xian = s[values[0]][shi[0]];        this.xianObj = xian;        picker.setSlotValues(1, shi);        this.addressProvince = values[0];        this.addressCity = values[1];        this.addressXian = values[2];        picker.setSlotValues(2, Object.keys(xian));      },      onStreetChange(picker, values){        this.addressStreet = values[0]      },          },    watch: {      ‘addressXian‘: {        handler(val, oval){          let street = this.xianObj[this.addressXian]          this.streetSlots[0].values = street        }      }    },    created(){         },    mounted(){      this.$nextTick(() => {        setInterval(() => {//这个是一个初始化默认值的一个技巧          this.addressSlots[0].defaultIndex = 0;        }, 1000);      });    }  }</script >