事件绑定
<!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"><h3>count value: {{count}}</h3><!-- v-on: vue事件函数 --><button v-on:click="addCount">+1</button><!-- js 事件函数 --><button @click="count+=1">+1</button></div></body>
<script>const vm = {data: function() {return {count: 0,}},methods: {addCount() {this.count += 1},},}const app = Vue.createApp(vm)app.mount('#app')
</script></html>
效果展示