開發環境下跑起來都沒問然後npm run build後，打開監聽port沒問題，

#但是刷新頁面後就掛掉了,刷新後就如下圖

#然後我改了下mian.js中的程式碼，build後刷新頁面不會掛掉，但我不知道為什麼

修改前

let router = new VueRouter({
mode: 'history',
routes: [
{
path: '/',
component: goods
},
{
path: '/goods',
component: goods
},
{
path: '/ratings',
component: ratings
},
{
path: '/seller',
component: seller
}

],
linkActiveClass: 'active'

})

修改後

const routes = [{
  path: '/',
  redirect: '/goods'
}, {
  path: '/goods',
  component: goods
}, {
  path: '/ratings',
  component: ratings
}, {
  path: '/seller',
  component: seller
}];

const router = new VueRouter({
  linkActiveClass: 'active',
  routes
});

修改後的url多了一個#的原因嗎?