defsuper_getattro(su,name):ifname=="__class__":return"super"n=len(su.__self__.__mro__)fori=0ton:ifsu.__self__.__mro__[i]==su.class:i+=1# skip current __class__breakwhilei<n:res=find_in_dict(su.__self__.__mro__[i].__dict__,name)ifres!=NULL:f=PyType(res)....
class Foo: def __init__(self): self.name = 'a' #用于执行obj.per @property def per(self): print('123456') #用于接收赋值给per的值 @per.setter def per(self,val): print(val) @per.deleter def per(self): print(666) obj = Foo() obj.per = 123 del obj.per 输出结果: 123456 123...
import pprint class WithTester(object): def __init__(self): self.__flag = 0 def __enter__(self): self.__flag = 1 print('[WithTester] triggered enter: %d' % self.__flag) return self.__flag + 99 def __exit__(self, exc_type, exc_val, exc_tb): self.__flag = 0 print(...
第一种：普通装饰器首先咱来写一个最普通的装饰器，它实现的功能是：在函数执行前，先记录一行日志在函数执行完，再记录一行日志# 这是装饰器函数，参数 func 是被装饰的函数deflogger(func):defwrapper(*args, **kw):
classA(object): name="Python" def__init__(self): print("A::__init__") deff(self): print("A::f") defg(self, aValue): self.value=aValue print(self.value) a=A() a.f() a.g(10) 我们都知道,对于一个包含函数定义的Python源文件,在Python源文件编译后,会得到一个与源文件对应的PyC...
classmethod: A method that receives the class as an implicit argument instead of the instance. staticmethod: A method that does not receive the implicit argument self as a first argument. properties with property: Create functions for managing the getting, setting and deleting of an attribute. ...
class MoCo(nn.Module): """ Build a MoCo model with: a query encoder, a key encoder, and a queue https://arxiv.org/abs/1911.05722 """ def __init__(self, base_encoder, dim=128, K=65536, m=0.999, T=0.07, mlp=False):
1 class Foo:2 f = 'abc' # 类的静态变量3 def __init__(self, name, pwd):4 self.name = name5 self.pwd = pwd6 def exex(self):7print('hi {}'.format(self.name))8return'ssd'9 class Ak:10 f = 'ssd'11 def __init__(self):12 pass13 sb = Foo('...
class closing(object): # help doc here def __init__(self, thing): self.thing = thing def __enter__(self): return self.thing def __exit__(self, *exc_info): self.thing.close()上下文管理器会将包装的对象赋值给 as 子句的 target 变量，同时保证打开的对象在 with-b...
由于python3.x系列不再有 raw_input函数,3.x中 input 和从前的 raw_input 等效,把raw_input换成input即可。 SyntaxError: multiple statements found while compiling a single statement 这是因为整体复制过去运行而产生的错误;解决方案如下: 方法一:先将第一行复制,敲一下回车,再将剩下的部分复制过去,运行; ...