code：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>使用 animate.css库</title>
<script type="text/javascript" src="js/vue.js" ></script>
<!--自定义类名操作-->
<!--<style>
.active{
transform-origin: left center;
animation: bounce-in 1s;
}
.leave{
transform-origin: left center;
animation: bounce-in 1s reverse;
}
</style>-->
<!--使用 animate.css库-->
<link rel="stylesheet" href="css/animate.css" />
</head>
<body>
<div id="root">
<!--自定义类名操作
<transition
enter-active-class="active"
leave-active-class="leave"
>
<div v-if="show">hello world</div>
</transition>-->
<!--使用 animate.css库-->
<transition
enter-active-class="animated swing"
leave-active-class="animated shake"
>
<div v-if="show">hello world</div>
</transition>
<button @click="handleClick">切换</button>
</div>
<script>
new Vue({
el:"#root",
data:{
show:true
},
methods:{
handleClick(){
this.show=!this.show
}
}
})
</script>
</body>
</html>