比如显示多个option

<el-option  v-for="item in list"
        :key="item.id"
        :label="item.value"
        :value="item.value"></el-option>

label需要拼接多个变量，可采用ES6写法
${(变量1)}${(变量)}${(变量3)}
注意，左右标点不是单引号，而是键盘1左边那一个`

<el-select v-model="selectAddreess" placeholder="请选择地址" class="my-menu-select">
    <el-option v-for="item1 in userAddress" 
    :label="`${(item1.provinceName)}${(item1.cityName)}${(item1.areaName)} ${(item1.address)}${(item1.phone)}  ${(item1.name)}`" 
    :value="item1.id"></el-option>
</el-select>