Merge pull request #1 from maemual/master

完成基本判题功能
Merge pull request #2 from maemual/master

修复一个bug
Merge pull request #3 from maemual/master

Dev
Merge pull request #4 from maemual/master

修复SpecialJudge的bug
增加若干注释
Merge pull request #5 from maemual/dev

Dev
Merge pull request #6 from NJUST-FishTeam/dev

Dev