条件渲染
- 用于控制组件显示
- 创建 demo6.html,内容如下
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<!-- 1. 导入 vue 脚本文件 -->
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
</head>
<body>
<!-- DOM区域 -->
<div id="app">
<button @click="flag = !flag"> Toggle Flag</button>
<!-- v-if 条件渲染: 标签不会被创建 -->
<p v-if="flag">v-if: request success</p>
<!-- v-show 条件渲染: 标签被隐藏 -->
<p v-show="!flag">v-show: request success</p>
</div>
</body>
<script>
const vm = {
data: function() {
return {
flag: false,
}
},
}
const app = Vue.createApp(vm)
app.mount('#app')
</script>
</html>
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效果展示
