20 Vue3中使用v-for遍历普通数组

概述

使用v-for遍历普通数组在真实开发中还是比较常见的。

基本用法

我们创建src/components/Demo20.vue，代码如下：

<script setup>
const tags = ["JavaScript", "Vue3", "前端"]
</script>
<template>
  <div>
    <ul>
      <li v-for="(tag,index) in tags" :key="index">{{ tag}}</li>
    </ul>
  </div>
</template>

接着，我们修改src/App.vue：

<script setup>
import Demo from "./components/Demo20.vue"
</script>
<template>
  <h1>【Python私教】使用Vue3进行前端开发</h1>
  <hr>
  <div class="container">
    <demo/>
  </div>
</template>

然后，我们浏览器访问：http://localhost:5173/

在这里插入图片描述

完整代码

package.json

{
  "name": "hello",
  "private": true,
  "version": "0.1.0",
  "type": "module",
  "scripts": {
    "dev": "vite",
    "build": "vite build"
  },
  "dependencies": {
    "vue": "^3.3.8"
  },
  "devDependencies": {
    "@vitejs/plugin-vue": "^4.5.0",
    "vite": "^5.0.0"
  }
}

vite.config.js

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'

export default defineConfig({
  plugins: [vue()],
})

index.html

<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Vite + Vue</title>
  </head>
  <body>
    <div id="app"></div>
    <script type="module" src="/src/main.js"></script>
  </body>
</html>

src/main.js

import { createApp } from 'vue'
import App from './App.vue'

createApp(App).mount('#app')

src/App.vue

<script setup>
import Demo from "./components/Demo20.vue"
</script>
<template>
  <h1>【Python私教】使用Vue3进行前端开发</h1>
  <hr>
  <div class="container">
    <demo/>
  </div>
</template>

src/components/Demo20.vue

<script setup>
const tags = ["JavaScript", "Vue3", "前端"]
</script>
<template>
  <div>
    <ul>
      <li v-for="(tag,index) in tags" :key="index">{{ tag}}</li>
    </ul>
  </div>
</template>