code: def index(self):
          '''
          Index funtion.
          '''
          self.render('index/index.html',
                      userinfo=self.userinfo,
                      catalog_info=MCategory.query_all(by_order=True),
                      link=MLink.query_all(),
                      cfg=CMS_CFG,
                      view=MPost.query_most_pic(20),
                      kwd={}, f index(self):
          '''
          Index funtion.
          '''
          self.render('index/index.html',
                      userinfo=self.userinfo,
                      catalog_info=MCategory.query_all(by_order=True),
                      link=MLink.query_all(),
                      cfg=CMS_CFG,
                      view=MPost.query_most_pic(20),
                      kwd={}, )
docs: Index funtion.