1 v-model 之 lazy、number、trim
lazy：等待input框的数据绑定时区焦点之后再变化，（懒加载）
number：数字开头，只保留数字，后面的字母不保留；字母开头，都保留
trim：去除首位的空格
2 lazy、number、trim
DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>v-model 之 lazy、number、trimtitle>
<script src="https://cdn.bootcdn.net/ajax/libs/vue/2.6.12/vue.min.js">script>
head>
<body>
<div id="box">
<input type="text" v-model="myText1" placeholder="normal"> {{myText1}}
<br>
<input type="text" v-model.lazy="myText2" placeholder="lazy"> {{myText2}}
<br>
<input type="text" v-model.number="myText3" placeholder="number"> {{myText3}}
<br>
<input type="text" v-model.trim="myText4" placeholder="trim"> {{myText4}}
div>
body>
<script>
var vm = new Vue({
el: '#box',
data: {
myText1: '',
myText2: '',
myText3: '',
myText4: '',
},
})
script>
html>
