通过递归的思维来获取：包含affix: true键值对路由器的绝对路径(父路由和子路由)

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1.路由代码---4个路由对象

 var router = [
 {
    path: '/',
    component: Layout,
    redirect: '/dashboard',
    children: [
      {
        path: 'dashboard',
        component: () => import('@/views/dashboard/index'),
        name: 'Dashboard',
        meta: { title: 'Dashboard', icon: 'dashboard', affix: true }
      }
    ]
  },
  {
    path: '/documentation',
    component: Layout,
    children: [
      {
        path: 'index',
        component: () => import('@/views/documentation/index'),
        name: 'Documentation',
        meta: { title: 'Documentation', icon: 'documentation', affix: true }
      }
    ]
  },
  {
    path: '/guide',
    component: Layout,
    redirect: '/guide/index',
    children: [
      {
        path: 'index',
        component: () => import('@/views/guide/index'),
        name: 'Guide',
        meta: { title: 'Guide', icon: 'guide', noCache: true  }
      }
    ]
  },
  {
    path: '/profile',
    component: Layout,
    redirect: '/profile/index',
    hidden: true,
    children: [
      {
        path: 'index',
        component: () => import('@/views/profile/index'),
        name: 'Profile',
        meta: { title: 'Profile', icon: 'user', noCache: true }
      }
    ]
  }
]

2.js代码

    // 筛选路由(父路由和子路由)中包含affix: true的
    filterAffixTags(routes, basePath = '/') {
      let tags = []
      routes.forEach(route => {
        if (route.meta && route.meta.affix) {
          const tagPath = path.resolve(basePath, route.path)
          tags.push({
            fullPath: tagPath,
            path: tagPath,
            name: route.name,
            meta: { ...route.meta }
          })
        }
        if (route.children) {
          const tempTags = this.filterAffixTags(route.children, route.path)
          if (tempTags.length >= 1) {
            tags = [...tags, ...tempTags]
          }
        }
      })
      return tags
    },

3.最后打印出来的tags的内容如下：

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