成绩计算器
计算您的剩余成绩，这样您就不必
跑步
python calculator.py --grades=[your grades.json file] --goal=[your goal grade overall]
帮助
$ python calculator.py --help
usage: calculator.py [-h] [--goal GOAL] [--grades GRADES]
Calculates the grades you need, if the results are negative or over 20, you
cant get those grades. Too lazy to make it better just deal with it. Also I
don't support classifications under 2.2, so
