选择框的数据需要获取后台数据，最开始在mounted里获取数据，数据拿到了，但是视图不更新。

错误代码：

<temple>
     <el-select v-model="list" placeholder="请选择">
        <el-option v-for="item in operationOptions" :key="item.value" :label="item.label" :value="item.value"></el-option>
    </el-select>
</temple>

<script>
    import axios from "axios"

    export default {
        name: "options",
        data() {
            return {
                operationOptions:[],
            }
        },
        mounted(){
            this.getOperationOptions(),
        },
        methods:{
            getOperationOptions(){
                let self = this
                axios.get("..." )    //这里是你的地址
                    .then(res => {
                        let tempResponse = res.data.replace(/:(\d+)([,\}])/g, ':"$1"$2')
                        let result = JSON.parse(tempResponse)['data']
                        self.operationOptions = result.map(
                              item=> ({
                                  "value": item.id,
                                  "label": item.Name,
                        })
                    )
                 });
            } 
        }
    }
</script>

后来改成这样 ， 正确代码：

<temple>
     <el-select v-model="list" placeholder="请选择">
        <el-option v-for="item in operationOptions" :key="item.value" :label="item.label" :value="item.value"></el-option>
    </el-select>
</temple>

<script>
    import axios from "axios"

    export default {
        name: "options",
        data() {
            return {
               //这里没了
            }
        },
        created:{
            operationOptions() {
                let obj = [];
                axios.get("..." )    //这里是你的地址
                    .then(res => {
                        let tempResponse = res.data.replace(/:(\d+)([,\}])/g, ':"$1"$2')
                        let result = JSON.parse(tempResponse)['data']
                        result.forEach((item, index) => {
                            obj.push({
                                "value": item.id,
                                "label": item.albumName,
                            });
                        });
                    });
                return obj;
            }
        }
    }
</script>

这样就OK啦！