1.lazy：失去焦点
2.number：格式化数字
3.trim：去除首尾空格
<!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="box">
<!-- 失去焦点的时刻拿到input中的值就可以了 使用lazy -->
用户名：<input type="text" v-model.lazy="mytext">{{mytext}}
密码：<input type="text" v-model.number="myage">
密码<input type="password" v-model.trim="password">
<button @click="handleLogin()">登录</button>
</div>
<script>
var vm = new Vue({
el:'#box',
data:{
mytext:'',
myage:18,
password:''
},
methods: {
handleLogin(){
// console.log(this.mytext)
// console.log(this.myage)
console.log(this.password)
}
},
})
</script>
</body>
</html>
