<template #="{ row, $index }"> <el-button type="primary" size="small" icon="User" @click="setRole(row)">分配角色</el-button> <el-button type="primary" size="small" icon="Edit" @click="updateUser(row)">编辑</el-button> <el-popconfirm :title="`你确定要删除${row.username}?`" width="260px" @confirm="deleteUser(row.id)"> <template #reference> <el-button type="primary" size="small" icon="Delete">删除</el-button> </template> </el-popconfirm> </template>详细解释上述代码

这段代码是一个 Vue.js 组件中使用 Element UI 组件库进行渲染的模板代码。它使用了 Vue.js 3 中的解构插槽语法，并结合了 Element UI 组件的特性来实现一个用户列表的操作界面。

具体来说，这个模板中包含了三个操作按钮，分别是“分配角色”、“编辑”和“删除”。这些按钮的点击事件都会触发组件中对应的方法，以完成相应的操作。

这个模板的核心在于 `template` 标签中的 `#="{ row, $index }"` 属性。这个属性使用了解构语法，将插槽内容解构为一个对象并命名为 `row` 和 `$index`。这个对象中包含了当前循环的数据和索引，可以在插槽内容中使用。

在插槽内容中，使用了 Element UI 中的 `el-button` 和 `el-popconfirm` 组件来渲染操作按钮。其中，`el-popconfirm` 组件是一个弹出确认框，当用户点击“删除”按钮时，会弹出一个确认框来提示用户是否确定要删除该用户。

总的来说，这段代码实现了一个用户列表的操作界面，让用户可以方便地对列表中的每个用户进行编辑、删除和角色分配等操作。

相关问题

<el-table border :data="tableData4" row-key="id"> <el-table-column prop="id" label="ID" /> <el-table-column prop="name" label="姓名" /> <el-table-column label="操作"> <template #default="{ $index, row }"> <el-button size="small" @click="Modify(row)">修改</el-button> <el-button size="small" @click="dialog7=true">添加</el-button> </template> </el-table-column> </el-table> 当树级数据没有children时 修改代码为操作列没有添加按钮 只有一个修改按钮

如果树级数据没有 children，那么你可以在代码中通过判断是否存在 children 来确定是否要展示添加按钮。你可以尝试修改代码如下：

<el-table border :data="tableData4"  row-key="id">
  <el-table-column prop="id" label="ID" />
  <el-table-column prop="name" label="姓名" />
  <el-table-column label="操作">
    <template #default="{ $index, row }">
      <el-button size="small" @click="Modify(row)">修改</el-button>
      <el-button v-if="row.children && row.children.length > 0" size="small" @click="dialog7=true">添加</el-button>
    </template>
  </el-table-column>
</el-table>

在这个示例中，我们使用了 `v-if` 来判断 `row.children` 是否存在以及其长度是否大于 0，如果存在，则展示添加按钮，否则不展示。这样可以确保只有在树级数据存在子节点时才展示添加按钮。

将以下vue+element ui代码转换成纯html+element ui代码：<template> <el-tabs v-model="activeName" class="demo-tabs" @tab-click="handleClick"> <el-tab-pane label="User" name="first"> <el-table :data="filterTableData" style="width: 100%"> <el-table-column label="Date" prop="date" /> <el-table-column label="Name" prop="name" /> <el-table-column align="right"> <template #header> <el-input v-model="search" size="small" placeholder="Type to search" /> </template> <template #default="scope"> <el-button size="small" @click="handleEdit(scope.$index, scope.row)" >Edit</el-button > <el-button size="small" type="danger" @click="handleDelete(scope.$index, scope.row)" >Delete</el-button > </template> </el-table-column> </el-table> </el-tab-pane> <el-tab-pane label="Config" name="second"> <el-table :data="filterTableData" style="width: 100%"> <el-table-column label="Date" prop="date" /> <el-table-column label="Name" prop="name" /> <el-table-column align="right"> <template #header> <el-input v-model="search" size="small" placeholder="Type to search" /> </template> <template #default="scope"> <el-button size="small" @click="handleEdit(scope.$index, scope.row)" >Edit</el-button > <el-button size="small" type="danger" @click="handleDelete(scope.$index, scope.row)" >Delete</el-button > </template> </el-table-column> </el-table></el-tab-pane> <el-tab-pane label="Role" name="third"> <el-table :data="filterTableData" style="width: 100%"> <el-table-column label="Date" prop="date" /> <el-table-column label="Name" prop="name" /> <el-table-column align="right"> <template #header> <el-input v-model="search" size="small" placeholder="Type to search" /> </template> <template #default="scope"> <el-button size="small" @click="handleEdit(scope.$index, scope.row)" >Edit</el-button > <el-button size="small" type="danger" @click="handleDelete(scope.$index, scope.row)" >Delete</el-button > </template> </el-table-column> </el-table></el-tab-pane> <el-tab-pane label="Task" name="fourth"> <el-table :data="filterTableData" style="width: 100%"> <el-table-column label="Date" prop="date" /> <el-table-column label="Name" prop="name" /> <el-table-column align="right"> <template #header> <el-input v-model="search" size="small" placeholder="Type to search" /> </template> <template #default="scope"> <el-button size="small" @click="handleEdit(scope.$index, scope.row)" >Edit</el-button > <el-button size="small" type="danger" @click="handleDelete(scope.$index, scope.row)" >Delete</el-button > </template> </el-table-column> </el-table></el-tab-pane> </el-tabs> </template> <script lang="ts" setup> import { computed, ref } from 'vue' interface User { date: string name: string address: string } const search = ref('') const filterTableData = computed(() => tableData.filter( (data) => !search.value || data.name.toLowerCase().includes(search.value.toLowerCase()) ) ) const handleEdit = (index: number, row: User) => { console.log(index, row) } const handleDelete = (index: number, row: User) => { console.log(index, row) } const tableData: User[] = [ { date: '2016-05-03', name: 'Tom', address: 'No. 189, Grove St, Los Angeles', }, { date: '2016-05-02', name: 'John', address: 'No. 189, Grove St, Los Angeles', }, { date: '2016-05-04', name: 'Morgan', address: 'No. 189, Grove St, Los Angeles', }, { date: '2016-05-01', name: 'Jessy', address: 'No. 189, Grove St, Los Angeles', }, ] </script> <style> .demo-tabs > .el-tabs__content { padding: 32px; color: #6b778c; font-size: 32px; font-weight: 600; } </style>

以下是转换后的纯HTML+Element UI代码：

<div class="demo-tabs el-tabs">
  <div class="el-tabs__header">
    <div class="el-tabs__nav-wrap">
      <div role="tab" aria-controls="pane-first" :aria-selected="activeName==='first' ? 'true' : 'false'" class="el-tabs__item" :class="{ 'is-active': activeName==='first' }" @click="activeName='first'">User</div>
      <div role="tab" aria-controls="pane-second" :aria-selected="activeName==='second' ? 'true' : 'false'" class="el-tabs__item" :class="{ 'is-active': activeName==='second' }" @click="activeName='second'">Config</div>
      <div role="tab" aria-controls="pane-third" :aria-selected="activeName==='third' ? 'true' : 'false'" class="el-tabs__item" :class="{ 'is-active': activeName==='third' }" @click="activeName='third'">Role</div>
      <div role="tab" aria-controls="pane-fourth" :aria-selected="activeName==='fourth' ? 'true' : 'false'" class="el-tabs__item" :class="{ 'is-active': activeName==='fourth' }" @click="activeName='fourth'">Task</div>
    </div>
  </div>
  <div class="el-tabs__content">
    <div role="tabpanel" aria-hidden="false" id="pane-first" class="el-tab-pane" :class="{ 'is-active': activeName==='first' }">
      <table class="el-table" style="width: 100%">
        <thead class="el-table__header">
          <tr>
            <th class="el-table_1_column_1">Date</th>
            <th class="el-table_1_column_2">Name</th>
            <th class="el-table_1_column_3">Operation</th>
          </tr>
        </thead>
        <tbody class="el-table__body">
          <tr v-for="(item, index) in filterTableData" :key="index">
            <td>{{ item.date }}</td>
            <td>{{ item.name }}</td>
            <td class="el-table_1_column_3">
              <button class="el-button el-button--small" @click="handleEdit(index, item)">Edit</button>
              <button class="el-button el-button--small el-button--danger" @click="handleDelete(index, item)">Delete</button>
            </td>
          </tr>
        </tbody>
      </table>
    </div>
    <div role="tabpanel" aria-hidden="true" id="pane-second" class="el-tab-pane" :class="{ 'is-active': activeName==='second' }">
      <table class="el-table" style="width: 100%">
        <thead class="el-table__header">
          <tr>
            <th class="el-table_2_column_1">Date</th>
            <th class="el-table_2_column_2">Name</th>
            <th class="el-table_2_column_3">Operation</th>
          </tr>
        </thead>
        <tbody class="el-table__body">
          <tr v-for="(item, index) in filterTableData" :key="index">
            <td>{{ item.date }}</td>
            <td>{{ item.name }}</td>
            <td class="el-table_2_column_3">
              <button class="el-button el-button--small" @click="handleEdit(index, item)">Edit</button>
              <button class="el-button el-button--small el-button--danger" @click="handleDelete(index, item)">Delete</button>
            </td>
          </tr>
        </tbody>
      </table>
    </div>
    <div role="tabpanel" aria-hidden="true" id="pane-third" class="el-tab-pane" :class="{ 'is-active': activeName==='third' }">
      <table class="el-table" style="width: 100%">
        <thead class="el-table__header">
          <tr>
            <th class="el-table_3_column_1">Date</th>
            <th class="el-table_3_column_2">Name</th>
            <th class="el-table_3_column_3">Operation</th>
          </tr>
        </thead>
        <tbody class="el-table__body">
          <tr v-for="(item, index) in filterTableData" :key="index">
            <td>{{ item.date }}</td>
            <td>{{ item.name }}</td>
            <td class="el-table_3_column_3">
              <button class="el-button el-button--small" @click="handleEdit(index, item)">Edit</button>
              <button class="el-button el-button--small el-button--danger" @click="handleDelete(index, item)">Delete</button>
            </td>
          </tr>
        </tbody>
      </table>
    </div>
    <div role="tabpanel" aria-hidden="true" id="pane-fourth" class="el-tab-pane" :class="{ 'is-active': activeName==='fourth' }">
      <table class="el-table" style="width: 100%">
        <thead class="el-table__header">
          <tr>
            <th class="el-table_4_column_1">Date</th>
            <th class="el-table_4_column_2">Name</th>
            <th class="el-table_4_column_3">Operation</th>
          </tr>
        </thead>
        <tbody class="el-table__body">
          <tr v-for="(item, index) in filterTableData" :key="index">
            <td>{{ item.date }}</td>
            <td>{{ item.name }}</td>
            <td class="el-table_4_column_3">
              <button class="el-button el-button--small" @click="handleEdit(index, item)">Edit</button>
              <button class="el-button el-button--small el-button--danger" @click="handleDelete(index, item)">Delete</button>
            </td>
          </tr>
        </tbody>
      </table>
    </div>
  </div>
</div>

需要注意的是，Element UI的CSS样式需要在HTML文件中引入。此外，上述代码中的`activeName`、`search`、`filterTableData`、`handleEdit`和`handleDelete`需要在JavaScript中定义和实现。