过两天要出去玩了，然后要备考托福。这个只能暂时坑一个月or some。
刚学的js，每天看前一天写的屎，都会忍不住重写一遍，现在真的累了orz。
有空我会加一点注释。
TODOLIST:
- scoreboard of multiplayer
- records of game of 8 rounds, and give a total score (analyze like they do in Lab 5)
- beutify the window, make the interval time more reasonable
- allow win by other's discard
- allow interface UI, make some animation
- allow restart the game
- modify AI algorithm (in brain.js)
- modify hand analyzer (in judge.js)
- add music, info, language
- LEARN MORE ABOUT HTML CSS JS, my code sucks.