vant/packages/vant-cli/site/desktop/router.js

import Vue from 'vue';
import VueRouter from 'vue-router';
import decamelize from 'decamelize';
import { isMobile } from '../common';
import { config, documents } from 'site-desktop-shared';
import { getLang, setDefaultLang } from '../common/locales';
import '../common/iframe-router';

if (isMobile) {
  location.replace('mobile.html' + location.hash);
}

const { locales, defaultLang } = config.site;

setDefaultLang(defaultLang);

function parseName(name) {
  if (name.indexOf('_') !== -1) {
    const pairs = name.split('_');
    const component = pairs.shift();

    return {
      component: `${decamelize(component, '-')}`,
      lang: pairs.join('-')
    };
  }

  return {
    component: `${decamelize(name, '-')}`,
    lang: ''
  };
}

function getRoutes() {
  const routes = [];
  const names = Object.keys(documents);

  if (locales) {
    routes.push({
      path: '*',
      redirect: `/${getLang()}/`
    });
  } else {
    routes.push({
      path: '*',
      redirect: '/'
    });
  }

  function addHomeRoute(Home, lang) {
    routes.push({
      name: lang,
      path: `/${lang || ''}`,
      component: Home,
      meta: { lang }
    });
  }

  names.forEach(name => {
    const { component, lang } = parseName(name);

    if (component === 'home') {
      addHomeRoute(documents[name], lang);
    }

    routes.push({
      name: `${lang}/${component}`,
      path: `/${lang}/${component}`,
      component: documents[name],
      meta: {
        lang,
        name: component
      }
    });
  });

  return routes;
}

Vue.use(VueRouter);

export const router = new VueRouter({
  mode: 'hash',
  routes: getRoutes(),
  scrollBehavior(to) {
    if (to.hash) {
      return { selector: to.hash };
    }

    return { x: 0, y: 0 };
  }
});

router.afterEach(() => {
  Vue.nextTick(() => window.syncPath());
});

window.vueRouter = router;