Vue单选框

 <el-radio-group v-model="checkedCities"  v-for="(city) in cities" :key="city.id"  @change="handleCheckedCitiesChange(city.id)" class="w_radio">
     <el-radio :label="city.id" style="width:80px">{{ city.name }}</el-radio>
 </el-radio-group>

 

 

返回值 this.checkedCities，即选中的 :label="city.id"的值