ctrl-c a formula, and ctrl-v the result
WARNING: STILL LOTS OF BUGS, DO NOT USE IN FORMAL SITUATION
How to use: run the code (maybe you need to install pyperclip first), type /lc or /listencliboard
then it will automatically calculate anything you copied and output the result to clipboard.
equal sign in the end will be ignored
support Equation of Microsoft Word
警告：bug还很多，不要做正式用途
运行（需要pyperclip）之后输入/lc或者/listenclipboard
复制算式，粘贴出来就是结果
支持word文档的公式（不如说就是为了快速计算word的公式而写的）
如果结尾是=会被吃掉
其他一些功能在注释里有写