<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<div id="app">
<div class="a"
@mouseenter="enter()"
@mouseleave="leave()"
> <input type="text" value="这边是列表">
<button class="b" v-show="flag" :title="message">查看详情</button>
</div>
</div>
<script src="https://cdn.bootcdn.net/ajax/libs/vue/2.6.0/vue.js"></script>
<script>
const app = new Vue({
el: '#app',
data() {
return {
flag: false,
message: '页面加载于 ' + new Date().toLocaleString()
};
},
methods: {
enter() {
this.flag = true
},
leave() {
this.flag = false
}
}
});
</script>
</body>
</html>