<template>
  <div>
    <el-select v-model="pname" @change="choseProvince" placeholder="省级地区">
      <el-option
        v-for="(item,$index) in province"
        :key="$index"
        :label="item.value"
        :value="item.id"
      ></el-option>
    </el-select>

    <el-select v-model="cname" @change="choseCity" placeholder="市级地区">
      <el-option v-for="(item,$index) in city" :key="$index" :label="item.value" :value="item.id"></el-option>
    </el-select>

    <el-select v-model="bname" @change="choseBlock" placeholder="区级地区">
      <el-option
        v-for="(item,$index) in block"
        :key="$index"
        :label="item.value"
        :value="item.value"
      ></el-option>
    </el-select>
  </div>
</template>

<script>
import ChineseDistricts from "../area";

export default {
  data() {
    return {
      ChineseDistricts: ChineseDistricts,
      province: [],
      shi1: [],
      qu1: [],
      city: [],
      block: [],
      pname: "", //省的名字
      cname: "", //市的名字
      bname: "" //区的名字
    };
  },

  methods: {
    // 加载china地点数据，三级
    getCityData() {
      let that = this;
      that.ChineseDistricts.forEach(function(item, index) {
        //省级数据
        that.province.push({
          id: item.code,
          value: item.name,
          children: item.cityList
        });
      });
    },

    // 选省
    choseProvince(e) {
      let that = this;
      that.city = [];
      that.block = [];
      that.cname = "";
      that.bname = "";
      for (var index2 in that.province) {
        if (e === that.province[index2].id) {
          that.shi1 = that.province[index2].children;
          that.pname = that.province[index2].value;

          that.shi1.forEach(function(citem, cindex) {
            that.city.push({
              id: citem.code,
              value: citem.name,
              children: citem.areaList
            });
          });
        }
      }
      console.log(that.pname);
    },

    // 选市
    choseCity(e) {
      let that = this;
      that.block = [];

      for (var index3 in that.city) {
        if (e === that.city[index3].id) {
          that.qu1 = that.city[index3].children;

          that.cname = that.city[index3].value;

          that.E = that.qu1[0].id;

          that.qu1.forEach(function(bitem, bindex) {
            that.block.push({
              id: bitem.code,
              value: bitem.name,
              children: []
            });
          });
        }
      }
      console.log(that.cname);
    },

    // 选区
    choseBlock(e) {
      this.bname = e;
      console.log(this.bname);
    }
  },

  created() {
    this.getCityData();
  }
};
</script>

省市区数据 area.js可以导这里下载：https://gitee.com/jinjianwei/area.js