v-model实现的原理
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
{{message}}
<input type="text" @input="inputhandle" :value="message">
</div>
<script src="../vue.js"></script>
<script>
const app = new Vue({
el: '#app',
data: {
message: 'hello'
},
methods: {
inputhandle(e){
console.log('----',e.target.value)
this.message = e.target.value
}
}
})
</script>
</body>
</html>