- v-if
- 不适用于频繁切换显示模式的场景
修改web.user，可看到条件渲染的效果
<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title>
</head><body><div id="app"><h2>{{web.show}}</h2><hr><p v-show="web.show">这是一段文字，可通过按钮隐藏</p><p v-if="web.show">www.tao355667.com</p><button @click="toggle">切换显示状态</button><p v-if="web.user<1000">新网站</p><p v-else-if="web.user>=1000 && web.user<10000">良好网站</p><p v-else-if="web.user>=10000 && web.user<100000">优秀网站</p><p v-else>非常优秀网站</p></div><script type="module">import { createApp, reactive } from './vue.esm-browser.js'createApp({setup() {const web = reactive({show: true,user:1000})const toggle = () => {web.show = !web.show;}return {web,toggle}}}).mount("#app")</script>
</body></html>
参考
https://www.bilibili.com/video/BV1nV411Q7RX
