事件绑定 创建 demo5.html,内容如下 <!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
