Element UI 中国省市区级联数据

1.下载：npm install element-china-area-data -S

2.按需导入：import { provinceAndCityData, regionData, provinceAndCityDataPlus, regionDataPlus, CodeToText, TextToCode } from 'element-china-area-data'

provinceAndCityData是省市二级联动数据（不带“全部”选项）
regionData是省市区三级联动数据（不带“全部”选项）
provinceAndCityDataPlus是省市区三级联动数据（带“全部”选项）
regionDataPlus是省市区三级联动数据（带“全部”选项）
"全部"选项绑定的value是空字符串""
CodeToText是个大对象，属性是区域码，属性值是汉字 用法例如：CodeToText['110000']输出北京市
TextToCode是个大对象，属性是汉字，属性值是区域码 用法例如：TextToCode['北京市'].code输出110000,TextToCode['北京市']['市辖区'].code输出110100,TextToCode['北京市']['市辖区']['朝阳区'].code输出110105

3.案例

 

 

 <el-form-item  label="交付地区" prop="province"  :rules=" form.contractStatus == '1' ? rules.province  : [{ required: false }]  " >
　　<el-cascader  clearable class="dialog_form_width" size="large"  :options="regionOptions" v-model="selectedRegionOptions" @change="handleChangeRegion"> </el-cascader>
</el-form-item>

data() {
      return {
　　 regionOptions: regionData, 
        selectedRegionOptions: [], 
        form:{    
           province:"",
           city:"",
          area:""
        }
      };
    },
  methods: {
      /** 获取省市区 */
      handleChangeRegion() {
         this.form.province = CodeToText[this.selectedRegionOptions[0]];
         this.form.city = CodeToText[this.selectedRegionOptions[1]];
         this.form.area = CodeToText[this.selectedRegionOptions[2]];
      },
     
    /** 修改按钮，回显省市区 */
    handleUpdate() { 
 　　//  this.selectedOptions.push(TextToCode[this.form.provinces].code,TextToCode[this.form.provinces][this.form.city].code)
　　this.selectedRegionOptions = [];
        if (
          this.form.province != "" &&
          this.form.province != undefined &&
          this.form.province != null
        ) {
          this.selectedRegionOptions.push(
            TextToCode[this.form.province].code,
            TextToCode[this.form.province][this.form.city].code,
            TextToCode[this.form.province][this.form.city][this.form.area].code
          );
        }
    },
  }

4.点击修改时，将省市传过来，通过TextToCode转成code，这样才会回显省市