https://stackoverflow.com/questions/89228/calling-an-external-command-in-python https://docs.python-guide.org/ https://github.com/lijin-THU/notes-python

https://github.com/geekcomputers/Python : 一些实用的脚本 https://github.com/coodict/python3-in-one-pic : 思维导图 https://gto76.github.io/python-cheatsheet/ : python check sheet

静态函数和静态成员

• staticmethod 和 classmethod
• https://stackoverflow.com/questions/136097/difference-between-staticmethod-and-classmethod
• python 的 static member 声明，不再函数中就可以了
  • https://stackoverflow.com/questions/68645/class-static-variables-and-methods

class MyClass:
  i = 3

m = MyClass()
m.i = 4
print(m.i)
print(MyClass.i)

这个输出和 cpp 的不一样，这里是 class 和 instance 都又一份 static member

比较 a array of dict

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