![day26 Python isinstance和issubclass day26 Python isinstance和issubclass](https://image.shishitao.com:8440/aHR0cHM6Ly9ia3FzaW1nLmlrYWZhbi5jb20vdXBsb2FkL2NoYXRncHQtcy5wbmc%2FIQ%3D%3D.png?!?w=700&webp=1)
isinstance(obj,cls)检查是否obj是否是类 cls 的对象
issubclass(sub, super)检查sub类是否是 super 类的派生类
class Foo(object):
pass
f1=Foo()
print(isinstance(f1,Foo))
class Foo(object):
pass
class Bar(Foo):
pass
print(issubclass(Bar,Foo)) 结果:
True
True
补充
#_*_coding:utf-8_*_
__author__ = 'Linhaifeng' class A:
pass class B(A):
pass print(issubclass(B,A)) #B是A的子类,返回True a1=A()
print(isinstance(a1,A)) #a1是A的实例,返回True 结果:
True
True