html
加个名字，index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Vue Mastery</title>
<!-- Import Styles -->
<link rel="stylesheet" href="./assets/styles.css" />
<!-- Import Vue.js -->
<script src="https://unpkg.com/vue@3.0.0-beta.12/dist/vue.global.js"></script>
</head>
<body>
<div id="event-handling">
<p>{{ message }}</p>
<button v-on:click="reverseMessage">反转 Message</button>
</div>
<!-- Import Js -->
<script src='./main.js'>
</script>
</body>
</html>
main.js
const EventHandling = {
data() {
return {
message: 'Hello Vue.js!'
}
},
methods: {
reverseMessage() {
this.message = this.message
.split('')
.reverse()
.join('')
}
}
}
Vue.createApp(EventHandling).mount('#event-handling')
注意看这里，盲写的，居然没有错！
<!-- Import Js -->
<script src='./main.js'>
</script>
再试一个别的看看，行不行。
