<template> <table> <thead> <tr> <th v-for="(item, index) in tableData[0]" :key="index">{{ index }}</th> </tr> </thead> <tbody> <tr v-for="(row, rowIndex) in tableData" :key="rowIndex"> <td v-for="(cell, cellIndex) in row" :key="cellIndex">{{ cell }}</td> </tr> </tbody> </table></template><script>export default { data() { return { tableData: [ { col1: 'A1', col2: 'B1', col3: 'C1', col4: 'D1' }, { col1: 'A2', col2: 'B2', col3: 'C2', col4: 'D2', col5: 'E2' }, { col1: 'A3', col2: 'B3', col3: 'C3', col4: 'D3', col5: 'E3', col6: 'F3' }, { col1: 'A4', col2: 'B4', col3: 'C4', col4: 'D4', col5: 'E4' }, { col1: 'A5', col2: 'B5', col3: 'C5', col4: 'D5', col5: 'E5', col6: 'F5', col7: 'G5' }, { col1: 'A6', col2: 'B6', col3: 'C6', col4: 'D6', col5: 'E6' }, ] }; }};</script>效果是什么样的
时间: 2023-12-21 17:04:08 浏览: 23
这段代码可以渲染一个表格,包含6行,列数不确定,根据数据动态生成。表格的列名为每个对象的key,行数据为每个对象的value。表格如下所示:
| col1 | col2 | col3 | col4 | col5 | col6 | col7 |
| ---- | ---- | ---- | ---- | ---- | ---- | ---- |
| A1 | B1 | C1 | D1 | | | |
| A2 | B2 | C2 | D2 | E2 | | |
| A3 | B3 | C3 | D3 | E3 | F3 | |
| A4 | B4 | C4 | D4 | E4 | | |
| A5 | B5 | C5 | D5 | E5 | F5 | G5 |
| A6 | B6 | C6 | D6 | E6 | | |
相关问题
以下代码出现了无法渲染列表的问题 <script setup> import { getCurrentInstance } from "vue"; let { proxy } = getCurrentInstance(); let students = []; function getData() { proxy.$axios.get('http://localhost:3000/students').then(res => { students = res.data; }) } </script> <template> <div> <button @click="getData">获取数据</button> <table> <thead> <tr> <th>学号</th> <th>姓名</th> <th>姓别</th> <th>分数</th> </tr> </thead> <tbody> <tr v-for="item in students" :key="item.id"> <td>{{ item.id }}</td> <td>{{ item.name }}</td> <td>{{ item.gender }}</td> <td>{{ item.score }}</td> </tr> </tbody> </table> </div> </template> <style scoped> </style>
这段代码中存在一个问题,就是当获取到数据后,students数组的值被更新了,但是并没有通知Vue重新渲染模板,导致列表无法显示。解决这个问题可以使用Vue的响应式系统,将students数组变成响应式的。将代码修改如下即可:
```
<script setup>
import { getCurrentInstance, reactive } from "vue";
let { proxy } = getCurrentInstance();
let state = reactive({
students: []
});
function getData() {
proxy.$axios.get('http://localhost:3000/students').then(res => {
state.students = res.data;
})
}
</script>
<template>
<div>
<button @click="getData">获取数据</button>
<table>
<thead>
<tr>
<th>学号</th>
<th>姓名</th>
<th>姓别</th>
<th>分数</th>
</tr>
</thead>
<tbody>
<tr v-for="item in state.students" :key="item.id">
<td>{{ item.id }}</td>
<td>{{ item.name }}</td>
<td>{{ item.gender }}</td>
<td>{{ item.score }}</td>
</tr>
</tbody>
</table>
</div>
</template>
<style scoped>
</style>
```
<template> table
<>标签通常用于定义HTML模板,其中可以包含任何HTML内容。在引用中提到了一个示例,其中<template>标签包含了一个<table>元素,其中包含了<thead>、<tr>和<th>等表格的结构标签。这个模板可以用来定义一个可编辑的表格,用于编辑记录集合。引用中也提到了类似的用法,其中最后一个<tr>元素成为了新行的模板。因此,<template>标签可以用来创建表格模板,以便在需要时动态生成和添加新行。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* [【HTML】模板元素(`<template>`标签)的特点与使用方法](https://blog.csdn.net/qq_35714301/article/details/118489526)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
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[ .reference_list ]