<!DOCTYPE html> <html lang="zh"> <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"> <script type="text/javascript" src="./vue.min.js"></script> <title></title> </head> <body> <input type="" name="" v-model='left'>- <input type="" name="" v-model='right'> {{left-right}} <script type="text/javascript"> new Vue( { el:'body', data:{ left:'', right:'' } } ); </script> </body> </html>
解释：
{{left-right}}
神来之笔
效果：
