版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/loovelj/article/details/82415290
最近在看代码,发现有个类初始化的时候,明明调用下面的Open方法,但是init方法中的stream竟然有参数,我疑惑了好久,查找文档暂时没有查到相关概念,但是经过试验是可以的。代码如下
class Test(object):
def __init__(self, stream,manes):
self.stream = stream
self.manes=manes
print(self.stream)
print(self.manes)
@classmethod
def open(cls, path,manes):
# return cls(open(path, "rb"), **kwargs)
return cls(path,manes)
# return path,manes
@staticmethod
def open1( path,manes):
# return cls(open(path, "rb"), **kwargs)
return path,manes
# return path,manes
print(Test.open("ccc","ddd"))
输出:
ccc
ddd
<__main__.Test object at 0x000002381A7725C0>
print(Test("ccc","ddd"))
输出:
ccc
ddd
<__main__.Test object at 0x000002381A7725C0>
最近又试了一个静态方法
print(Test.open("ccc","ddd") is Test.open("ccc","ddd")) #False
print(Test.open1("ccc","ddd") is Test.open1("ccc","ddd"))#False
print(Test.open is Test.open)#False
print(Test.open1 is Test.open1)#True