//app.vue<transition :name="'vux-pop-' + (direction === 'forward' ? 'in' : 'out')"> <keep-alive> <router-view class="router-view" ></router-view> </keep-alive></transition><script> import { mapState } from 'vuex' import sideFooter from "./components/Footer.vue" export default { name: 'app', data () { return { showFooter : false } }, components : { sideFooter }, computed:{ ...mapState({ direction: state => state.mutations.direction }) }, }</script><style scoped> .vux-pop-out-enter-active, .vux-pop-out-leave-active, .vux-pop-in-enter-active, .vux-pop-in-leave-active { will-change: transform; transition: all 250ms; height: 100%; top: 0; position: absolute; backface-visibility: hidden; perspective: 1000; } .vux-pop-out-enter { opacity: 0; transform: translate3d(-100%, 0, 0); } .vux-pop-out-leave-active { opacity: 0; transform: translate3d(100%, 0, 0); } .vux-pop-in-enter { opacity: 0; transform: translate3d(100%, 0, 0); } .vux-pop-in-leave-active { opacity: 0; transform: translate3d(-100%, 0, 0); }</style>

// main.jsconst history = window.sessionStorage;history.clear()let historyCount = history.getItem('count') * 1 || 0;history.setItem('/', 0);router.beforeEach(function (to, from, next) { const toIndex = history.getItem(to.path); const fromIndex = history.getItem(from.path); if (toIndex) { if (!fromIndex || parseInt(toIndex, 10) > parseInt(fromIndex, 10) || (toIndex === '0' && fromIndex === '0')) { store.commit('UPDATE_DIRECTION', {direction: 'forward'}) } else { store.commit('UPDATE_DIRECTION', {direction: 'reverse'}) } } else { ++historyCount; history.setItem('count', historyCount); to.path !== '/' && history.setItem(to.path, historyCount); store.commit('UPDATE_DIRECTION', {direction: 'forward'}) } next()});