SOURCE

console 命令行工具 X clear

                    
>
console
new Vue({
  el:'#app',
  data:{
    message:13,
    sex:'female',
    hobby:['footbal'],
    from:1,
    math:90,
    chinese:90
  },
  computed:{
    sum:function(){
      return this.math + this.chinese;
    },
    avg:function(){
      return this.sum / 2;
    }
    
  }
});

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <title>Document</title>
</head>
<body>
  <div id="app">
    {{message}}
     <input type="radio" v-model="sex"  value="female" name="sex"/><input type="radio" v-model="sex"   value="male" name="sex"/>女
      {{sex}}
      <input type="checkbox" name="hobby" v-model="hobby" value="footbal"/>足球
      <input type="checkbox" name="hobby" v-model="hobby" value="baskball"/>篮球
      <input type="checkbox" name="hobby" v-model="hobby" vallue="pingpang"/>乒乓球
      {{hobby}}
      <select name="" id="" v-model="from">
        <option value="1">山东</option>
        <option value="2">上海</option>
      </select>
    
      数学: <input type="text" v-model.number="math" />
      语文: <input type="text" v-model.number="chinese" />
      总分:{{sum}}
      平均分:{{avg}}
    
  </div>
 
</body>
</html>