Vue切换组件动画过渡效果> 会用到Vue官方内置组件`Transition`，会在一个元素或组件进入和离开 DOM 时

会用到Vue官方内置组件Transition，会在一个元素或组件进入和离开 DOM 时应用动画


 <router-view v-slot="{ Component }">
            <transition name="fade-slide" mode="out-in">
              <component :is="Component" />
            </transition>
 </router-view>
 
 
 .fade-slide-leave-active,
.fade-slide-enter-active {
  transition: all 0.5s;
}
.fade-slide-enter-from {
  opacity: 0;
  transform: translateX(-2rem);
}
.fade-slide-leave-to {
  opacity: 0;
  transform: translateX(2rem);
}