<!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> <script src="./../vue.min.js"></script> </head> <body> <div id="app"> <span v-if="isUser"><lable for="userName">用户账号:</lable><input type="text" id="userName" placeholder="用户账号"></span> <span v-else><label for="userEmail">用户邮箱:<input type="email" id="userEmail" placeholder="用户邮箱"></label></span> <button @click="switchButton">切换类型</button> </div> <script> const app=new Vue({ el:"#app", data:{ isUser:true }, methods:{ switchButton(){ return this.isUser=!this.isUser } } }) </script> </body> </html>
