面向对象之isinstance与issubclass(python内置方法)

Posted 2020-11-28 城南花已开

isinstance
issubclass

TOC

isinstance

判断一个对象是否是另外一个类的实例，返回布尔值。

• 是：True
• 否：False

class Foo:
    pass


class Boo:
    pass


foo_obj = Foo()
boo_obj = Boo()

print(isinstance(foo_obj, Foo))
print(isinstance(boo_obj, Foo))


>>>True
>>>False

issubclass

判断一个类是否是另外一个类的子类，返回布尔值。

• 是：True
• 否：False

class Father:
    pass


class Sub(Father):
    pass


class Foo:
    pass


print(issubclass(Sub, Father))
print(issubclass(Foo, Father))


>>>True
>>>False

来自为知笔记(Wiz)