1将animate和过度动画的类名添加到transition对应的类上
2appear 设置初始样式（页面刷新样式）appear-active-class
3type设置动画时间依据类型（transition或animate）
4可以通过:duration来设置动画时间，补充3
<style> .fade-enter,.fade-leave-to{ opacity: 0; } .fade-enter-active,.fade-leave-active{ transition: opacity 1s; } </style> </head> <body> <!-- 过程如下： 显示 fade-enter,fade-enter-active fade-enter-active,fade-enter-to 空 隐藏 fade-leave,fade-leave-active fade-leave-active,fade-leave-to 空 --> <div id="root"> <transition name='fade' appear appear-active-class='animated tada' enter-active-class='animated tada fade-enter-active' leave-active-class='animated rubberBand fade-leave-active' > <h1 v-show='show'> 最是年少时模样 </h1> </transition> <button @click='change'>切换</button> </div> <script> var vm=new Vue({ el:'#root', data:{ show:true }, methods:{ change:function(){ this.show=!this.show; } } }) </script> </body>