<html>
<head>
<meta charset="utf-8" />
<title></title>
<script src="js/vue.js" type="text/javascript" charset="utf-8"></script>
<style type="text/css">
.fade-enter{
opacity: 0;
}
.fade-enter-active{
transition: opacity 3s;
}
.fade-leave-to{
opacity: 0;
}
.fade-leave-active{
/* 如果transition没有定义名字，使用v-leave-to//v-enter */
transition: opacity 3s;
}
</style>
</head>
<body>
<div id="t">
<transition name="fade">
<div v-if="show">Hello</div>
</transition>
<button type="button" @click="hand1">点我</button>
</div>
<script>
var vm=new Vue({
el:"#t",
data:{
show:true
},
methods:{
hand1:function(){
this.show=!this.show
}
})
</script>
</body>
</html>