``` new Router({ routes: [ { path: '/' , name: 'Home' , component: Home } ,{ path: '/city' , name: 'City' , component: City } ,{ path: '/detail/:id' , name: 'Detail' , component: Detail } ] //每次进入页面时都初始化滚轴位置 ,scrollBehavior(to,from,savedPosition){ return {x: 0, y: 0}; } }) ```