**推荐网站**  
  * [[http://smalltown.wikidot.com|小城的问候]]
  * [[https://blog.lingle.xyz|某数学大佬的博客]]
  * [[https://halo.lingle.xyz|某数学大佬的博客(halo)]]
  * [[https://www.chessmelee.online|《举棋不定》]]