<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Vue中的列表过渡</title>
<script src="./vue.js"></script>
<style>
.v-enter, .v-leave-to {
opacity: 0;
}
.v-enter-active, .v-leave-active {
transition: opacity 1s;
}
</style>
</head>
<body>
<div id="root">
<transition-group>
<div v-for="(item,index) of list" :key="item.id">
{{item.title}}
</div>
</transition-group>
<button @click="handleBtnClick">Add</button>
</div>
<script>
var count = 0;
var vm = new Vue({
el: '#root',
data: {
list: []
},
methods: {
handleBtnClick: function () {
this.list.push({
id: count++,
title: 'hello world'
})
}
}
})
</script>
</body>
</html>