WHY

  • notes/references/bookmarks/cheatsheet

WHT

  • python/java/javascript/ruby
  • django/spring/node/rails
  • frontend/backend/system/test

WHO

  • football/detective/walking
  • ba/cs/ecnu/cn
  • zh/en/ja
  • andy/yuan/jiang

WHR

  • sc/cn
  • sh/cn
  • tokyo/jp

WHN

  • ~2004/~2008/~2018
  • 2018~