python 类和__class__理解

__class__可理解为对象所属的父类

class A:
    def __init__(self,url):
        self.url = url
    def out(self):
        return self.url


a = A('news.163.com')
print a.out()

b = a.__class__('www.bccn.net')
print b.out()


print A
print a.__class__

　　a.__class__等价于A

元类的理解，

http://www.jb51.net/article/61138.htm

转载于:https://www.cnblogs.com/xqnq2007/p/7742183.html