themeConfig: {
      lastUpdated: '更新时间',
      logo: '/logo.png',
      nav:[ // 导航栏配置
        {text: '前端基础', link: '/accumulate/' },
        {text: '算法题库', link: '/algorithm/'},
        {text: '微博', link: 'https://baidu.com'},
        {
            text: 'Languages',
            ariaLabel: 'Language Menu',
            items: [
              { text: 'Chinese', link: '/language/chinese/' },
              { text: 'Japanese', link: '/language/japanese/' }
            ]
        }      
      ],