vue异步加载路由

//异步路由
    {
        path: 'ledger',
        name: 'Ledger',
        component: resolve => require(['@/views/statement/ledger'], resolve),
        meta: { title: '购物车' }
      }
// 普通路由
    {
        path: 'ledger',
        name: 'Ledger',
        component: () => import('@/views/operation/exchange-rate'),
        meta: { title: '购物车' }
      }

其实上面两个都是异步加载路由的，不过第一种基本不用了