vue如何给页面增加url前缀

const createRouter = () => new Router({
  mode: 'history', // require service support
  scrollBehavior: () => ({ y: 0 }),
  routes: constantRoutes
})

base: 'WEB', //页面路由前缀

const createRouter = () => new Router({
  mode: 'history', // require service support
  base: 'web',
  scrollBehavior: () => ({ y: 0 }),
  routes: constantRoutes
})

export default new Router({
  mode: 'history', //后端支持可开
  # base: '/wtlicence',
  scrollBehavior: () => ({
    y: 0
  }),
  routes: constantRouterMap
});

export default new Router({
  mode: 'history', //后端支持可开
  base: '/wtlicence',
  scrollBehavior: () => ({
    y: 0
  }),
  routes: constantRouterMap
});