同时使用过渡和动画

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<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>Vue中同时使用过渡和动画</title>
    <script src="./vue.js"></script>
    <link rel="stylesheet" type="text/css" href="./animate.css">
    <style>
        .fade-enter,
        .fade-leave-to {
            opacity: 0;
        }
        .fade-enter-active,
        .fade-leave-active {
            transition: opacity 3s;
        }
    </style>
</head>
<body>
    <div id="root">
        <transition 
            :duration="{enter: 3000, leave: 3000}"
            name="fade"
            appear
            enter-active-class="animated swing fade-enter-active"
            leave-active-class="animated shake fade-leave-active"
            appear-active-class="animated swing"
        >
            <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: function() {
                this.show = !this.show
            }
        }
    })
    </script>
</body>
</html>