如下所示：
<head>
<<a href="https://www.jb51.cc/tag/Meta/" target="_blank" class="keywords">Meta</a> charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="css/bootstrap.css" rel="external nofollow" >
<script src="js/jquery-3.2.1.min.js"></script>
<script src="js/bootstrap.js"></script>
<script src="js/vue.js"></script>
</head>
<body>
<div id="example">
<input type="text" v-model="items.type" ref="type" />
<div class="show">输入框的<a href="https://www.jb51.cc/tag/neirong/" target="_blank" class="keywords">内容</a>：{{items.type}}</div>
</div>
<script>
var example1 = new Vue({
el: '#example',data: {
items: {
type: '千年之恋:'
}
},watch: {
items: {
handler: function() {
alert(this.$refs.type.value);
},deep: true
}
}
})