vue在html中的使用。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
<style>
.active{
color: red;
}
</style>
<div id="app">
{{ message }}
<hr>
<span :class="{ active: isActive }">{{count}} 是 1 吗？{{ count == 1 ? 'Yes' : 'No' }}</span>
<hr>
<span>当前时间：{{nows}}</span>
<br>
<span>{{fullName}} ( {{firstName}} {{lastName}} )</span>
<br>
<span>{{languageBooksLength}}</span>
<hr>
<ul>
<li v-for="(item, index) in languageBooks">
{{ index }} - {{ item }}
</li>
</ul>
<span v-for="item of languageBooks">{{ item }} , </span>
<hr>
<h1 v-if="awesome">Vue is awesome!</h1>
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