Alien_0x0111的博客

# author : yang.cao # date : 2020.02.15 from contextlib import contextmanager class Context: def __init__(self, filename, mode): self.__filename = filename self.__mode = mode ...

# author : yang.cao # date : 2020.02.13 class Goods: def __init__(self): self.original_price = 100 self.seal = 0.8 @property def price(self): return self.orig...

实例方法不可以通过类来调用，类方法和静态方法可以被类调用 # author : yang.cao # date : 2020.02.13 class Cls: cls_arg = 10 def __init__(self): print("__init__") print(Cls.cls_arg) def item_fun(...

# author : yang.cao # date : 2020.02.12 class Parent: def __init__(self): print("Father") class Son1(Parent): def __init__(self): super().__init__() print("Son1"...

copy.copy()中如果拷贝的是列表等可修改对象，则会拷贝最上一层，如果拷贝的最上层是元组等不可修改对象，则只是拷贝了对象的引用： In [2]: a = [1, 2, 3] In [3]: b = copy.copy(a) In [4]: id(a) Out[4]: 140568059574600 In [5]: id(b) Out[5]: 140568059649992 In [...

# author : yang.cao # date : 2020.02.07 import re import socket import select def server_client(client_socket, data): ret = None try: ret = re.match(r"[^/]*(/[^\s]*)", data.splitl...