element select 传参

遇到业务场景 需要change事件传id name

value-key="id" 必须带上

<el-select
            v-model="selfInfo.province"
            :placeholder="currInfo.province"
            value-key="id"
            @change="handelPro"
          >
            <el-option
              v-for="item in proData"
              :key="item.id"
              :label="item.name"
              :value="item"
            >
            </el-option>
          </el-select>