meta:{requireAuth:true}, 

router.beforeEach((to, from, next) => {  if (to.matched.some(record => record.meta.requireAuth)){ // 判斷該路由是否需要登錄權(quán)限    if (sessionStorage.getItem("access_token")) { // 判斷當(dāng)前的token是否存在      next();    }    else {      next({      path: '/manage',      query: {redirect: to.fullPath} // 將跳轉(zhuǎn)的路由path作為參數(shù)，登錄成功后跳轉(zhuǎn)到該路由    })    }  }  else {    next();  }});