1.导入 npm install element-china-area-data -S 代码 <template> <div> <el-form> <el-form-item label="省市区"> <el-cascader :options="options" :props="{ multiple: true }" v-model="optionsCity" collapse-tags clearable @change="searchBuilds" placeholder="请选择省市区" ></el-cascader> ...