scope.row如何取到多层数据
时间: 2023-12-25 18:06:51 浏览: 24
如果您正在使用Vue.js,可以使用"."运算符访问多层数据。例如,如果您有一个名为"person"的对象,其中包含一个名为"address"的对象,您可以使用以下代码访问"address"对象中的属性:
```
person.address.street
```
如果您正在使用JavaScript原生语言,则可以使用多个"."运算符或"[]"运算符访问多层数据。例如,如果您有一个名为"person"的对象,其中包含一个名为"address"的对象,您可以使用以下代码访问"address"对象中的属性:
```
person.address.street
```
或者使用以下代码:
```
person["address"]["street"]
```
如果您使用的是其他框架或库,可能会有不同的方法来访问多层数据。
相关问题
<div v-else-if="per.dict_value === 'file_name'"> <el-tooltip placement="top" effect="dark" v-if="scope.row.download_time || scope.row.repair_download_time"> <div slot="content" > <span v-if="scope.row.repair_download_time">{{ parseTime(scope.row.repair_download_time,'{y}-{m}-{d} {h}:{i}:{s}') }}</span> <span v-else-if="scope.row.download_time">{{ parseTime(scope.row.download_time,'{y}-{m}-{d} {h}:{i}:{s}') }}</span> </div> <el-link v-if="scope.row.repair_file_id" :key="scope.row.repair_file_id" style="display: block;color: #67C23A" icon="el-icon-paperclip" @click="downloadOrderExcel(scope.row.repair_file_id, scope.row.order_no, scope.row.repair_file_name)" >{{ scope.row.repair_file_name }}</el-link> <el-link v-else-if="scope.row.file_id" :key="scope.row.file_id" style="display: block;color: #67C23A" icon="el-icon-paperclip" @click="downloadOrderExcel(scope.row.file_id, scope.row.order_no, scope.row.file_name)" >{{ scope.row[per.dict_value] }}</el-link> </el-tooltip> <div v-else> <el-link v-if="scope.row.repair_file_id" :key="scope.row.repair_file_id" style="display: block;" icon="el-icon-paperclip" @click="downloadOrderExcel(scope.row.repair_file_id, scope.row.order_no, scope.row.repair_file_name)" >{{ scope.row.repair_file_name }}</el-link> <el-link v-else-if="scope.row.file_id" :key="scope.row.file_id" style="display: block;" icon="el-icon-paperclip" @click="downloadOrderExcel(scope.row.file_id, scope.row.order_no, scope.row.file_name)" >{{ scope.row[per.dict_value] }}</el-link> </div> </div>优化这段代码用vue2.0
首先,将指令 `v-if` 和 `v-else-if` 改为计算属性,以减少模板中的逻辑判断。
```javascript
computed: {
hasDownloadTime() {
return this.scope.row.download_time || this.scope.row.repair_download_time
}
},
```
然后,将模板中的 `v-if` 和 `v-else-if` 替换为计算属性的使用。
```html
<div>
<el-tooltip placement="top" effect="dark" v-if="hasDownloadTime">
<div slot="content">
<span v-if="scope.row.repair_download_time">{{ parseTime(scope.row.repair_download_time,'{y}-{m}-{d} {h}:{i}:{s}') }}</span>
<span v-else-if="scope.row.download_time">{{ parseTime(scope.row.download_time,'{y}-{m}-{d} {h}:{i}:{s}') }}</span>
</div>
<el-link v-if="scope.row.repair_file_id" :key="scope.row.repair_file_id" style="display: block;color: #67C23A" icon="el-icon-paperclip" @click="downloadOrderExcel(scope.row.repair_file_id, scope.row.order_no, scope.row.repair_file_name)" >{{ scope.row.repair_file_name }}</el-link>
<el-link v-else-if="scope.row.file_id" :key="scope.row.file_id" style="display: block;color: #67C23A" icon="el-icon-paperclip" @click="downloadOrderExcel(scope.row.file_id, scope.row.order_no, scope.row.file_name)" >{{ scope.row.file_name }}</el-link>
</el-tooltip>
<div v-else>
<el-link v-if="scope.row.repair_file_id" :key="scope.row.repair_file_id" style="display: block;" icon="el-icon-paperclip" @click="downloadOrderExcel(scope.row.repair_file_id, scope.row.order_no, scope.row.repair_file_name)" >{{ scope.row.repair_file_name }}</el-link>
<el-link v-else-if="scope.row.file_id" :key="scope.row.file_id" style="display: block;" icon="el-icon-paperclip" @click="downloadOrderExcel(scope.row.file_id, scope.row.order_no, scope.row.file_name)" >{{ scope.row.file_name }}</el-link>
</div>
</div>
```
最后,将 `{{ scope.row[per.dict_value] }}` 替换为 `{{ scope.row.file_name }}`。完整的代码如下:
```html
<div>
<el-tooltip placement="top" effect="dark" :visible="hasDownloadTime">
<div slot="content">
<span v-if="scope.row.repair_download_time">{{ parseTime(scope.row.repair_download_time,'{y}-{m}-{d} {h}:{i}:{s}') }}</span>
<span v-else-if="scope.row.download_time">{{ parseTime(scope.row.download_time,'{y}-{m}-{d} {h}:{i}:{s}') }}</span>
</div>
<el-link v-if="scope.row.repair_file_id" :key="scope.row.repair_file_id" style="display: block;color: #67C23A" icon="el-icon-paperclip" @click="downloadOrderExcel(scope.row.repair_file_id, scope.row.order_no, scope.row.repair_file_name)" >{{ scope.row.repair_file_name }}</el-link>
<el-link v-else-if="scope.row.file_id" :key="scope.row.file_id" style="display: block;color: #67C23A" icon="el-icon-paperclip" @click="downloadOrderExcel(scope.row.file_id, scope.row.order_no, scope.row.file_name)" >{{ scope.row.file_name }}</el-link>
</el-tooltip>
<div v-else>
<el-link v-if="scope.row.repair_file_id" :key="scope.row.repair_file_id" style="display: block;" icon="el-icon-paperclip" @click="downloadOrderExcel(scope.row.repair_file_id, scope.row.order_no, scope.row.repair_file_name)" >{{ scope.row.repair_file_name }}</el-link>
<el-link v-else-if="scope.row.file_id" :key="scope.row.file_id" style="display: block;" icon="el-icon-paperclip" @click="downloadOrderExcel(scope.row.file_id, scope.row.order_no, scope.row.file_name)" >{{ scope.row.file_name }}</el-link>
</div>
</div>
```
如何清空scope.row中的数据
要清空scope.row中的数据,可以使用以下代码:
```
scope.row = {};
```
这将会将scope.row清空,使其成为空对象。如果你想要清空特定的属性,可以使用delete操作符,例如:
```
delete scope.row.name;
```
这将会清空scope.row对象中的name属性。