router:{path: '/actlist',name: 'actlist',component: actlist,meta: {keepAlive: true}}

<keep-alive><router-view v-if="$route.meta.keepAlive"></router-view></keep-alive><router-view v-if="!$route.meta.keepAlive"></router-view>

beforeRouteEnter(to,from,next){if(!sessionStorage.askPositon || from.path == '/'){//當前頁面刷新不需要切換位置sessionStorage.askPositon = '';next();}else{next(vm => {if(vm && vm.$refs.my_scroller){//通過vm實例訪問thissetTimeout(function () {vm.$refs.my_scroller.scrollTo(0, sessionStorage.askPositon, true);},0)//同步轉異步操作}})}},beforeRouteLeave(to,from,next){//記錄離開時的位置sessionStorage.askPositon = this.$refs.my_scroller && this.$refs.my_scroller.getPosition() && this.$refs.my_scroller.getPosition().top;next()}