20 Vue3中使用v-for遍历普通数组-编程知识

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>