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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Document</title>
- <script src="./js/vue.js"></script>
- </head>
- <body>
- <div id="app">
- <h1>{{str}}</h1>
- <!-- v-on 可以缩写成 @ -->
- <button @click="changeStr">修改str</button>
- </div>
- <script>
- new Vue({
- el:"#app",
- data:{
- str:"hello world",
- },
- methods:{
- changeStr(){
- // 可以通过 this 直接修改和获取data中的值
- console.log(this.str);
- this.str = "你好世界";
- }
- }
- })
- </script>
- </body>
- </html>
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