缓存路由组件

<keep-alive include="Home"> //include等于组件名 如需缓存多个组件,:include="['News','Home']" 

    <router-view />

</keep-alive>

缓存路由组件，让不显示的组件保持挂载，不被销毁

路由组件独特的生命周期函数

  activated(){
    //路由组件被激活时触发
  }
  deactivated() {
      //路由组件被失活时触发
  },