代码
提交代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> </head> <body> <div id="app"> <div> <label>年龄:</label> <input v-model="age"/> </div> <div v-once>当前输入的年龄是: {{age}}</div> <div>当前输入的年龄是: {{age}}</div> </div> </body> <script src="https://unpkg.com/vue/dist/vue.js"></script> <script type="text/javascript"> var vm = new Vue({ el: '#app', data: { age: 10 } }) </script> </html>
运行结果