请问 Vue 能设置预设全局分享 Layout 吗?

你应该在设计路由的时候把 layout 放在外层，不就好了么。

比如说这样的结构：

import Vue from 'vue';
import Router from 'vue-router';

const Layout = ()=> import(`./layouts/LayoutDefault.vue`);
const Home = () => import(`./views/Home.vue`);
const About = () => import(`./views/About.vue`);

Vue.use(Router);

export default new Router({
  mode: `history`,
  routes: [
    {
      path: `/`,
      name: `Layout`,
      redirect: '/home',
      component: Layout,
      children:[
        {
          path: `/home`,
          name: `home`,
          component: Home,
        },
        {
          path: `/about`,
          name: `about`,
          component: About,
        },
      ]
    },
  ],
});