<transition name="router-fade" mode="out-in">
      <keep-alive>
          <router-view v-if="$route.meta.keepAlive"></router-view>
      </keep-alive>
      </transition>

      <transition name="router-fade" mode="out-in">
      <router-view v-if="!$route.meta.keepAlive"></router-view>
    </transition>