<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
</head>
<body>
<script type="module">
const { createApp ,reactive ,ref} = Vue
createApp({
setup() {
const counter = reactive({ count: 0 })
const message = ref('Hello World!')
return {
counter,
message
}
}
}).mount('#app')
</script>
<div id="app">
<h1>{{ message }}</h1>
<p>Count is: {{ counter.count }}</p>
</div>
</body>
</html>
标签：count,const,ref,counter,reactive,vue3,message,写法,页面 From： https://www.cnblogs.com/dj258/p/17589485.html