标签：选项 username newVal watch deep 侦听器 info
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<div id="app">
<input type="text" v-model="info.username" />
</div>
<script src="lib/vue-2.6.12.js"></script>
<script src="lib/jquery-v3.6.0.js"></script>
<script>
const vm = new Vue({
el: '#app',
data: {
// 用户的信息对象
info: {
username: 'admin'
}
},
// 所有的侦听器，都应该被定义到watch节点下
watch: {
info: {
handler(newVal) {
console.log(newVal.username)
},
//开启深度监听，只要对象中任何一个属性变化
deep: true
}
}
})
</script>
</body>
</html>
标签：选项,
username,
newVal,
watch,
deep,
侦听器,
info
From： https://www.cnblogs.com/yang-young-young/p/17473865.html