2022-10-08 学习Python-Day16

wyh551202

国庆归来，学习类与对象开始P59-P61

###########################################P59 对象与类
'''
20221008
'''
class Turtle:
    head=1
    eyes=2
    legs=4
    shell=True
    def crawl(self):
        print('11')
    def run(self):
        print('22')
    def bite(self):
        print('33')
    def eat(self):
        print('44')
    def sleep(self):
        print('55')
t1 =Turtle()
print(t1.head)
t1.crawl()
t2=Turtle()
t2.legs=321
print(t2.legs)
print(t1.legs)
t1.mouth=5
print(t1.mouth)
print(dir(t1))
print(dir(t2))
x=520
print(type(x))
y='Fishc'
print(type(y))
class C:
    def hello(self):
        print(self)
c=C()
print(c)
c.hello()
###########################################P60 对象与类
class A:
    x=520
    def hello(self):
        print('你好，我是A')
class B(A):
    pass
b=B()
print(b.x)
b.hello()
class B(A):
    x=880
    def hello(self):
        print('你不好，我是B')
b=B()
b.hello()
print(isinstance(b,B))
print(isinstance(b,A))
print(issubclass(A,B))
print(issubclass(B,A))
class B:
    x=520
    y=250
    def hello(self):
        print('你好，我是B')
class C(A,B):
    pass
c=C()
print(c.x)
print(c.y)
c.hello()
class Turtle:
    def say(self):
        print('不不不')

class Cat:
    def say(self):
        print('喵喵喵')

class Dog:
    def say(self):
        print('汪汪汪')

class Garden:
    t=Turtle()
    c=Cat()
    d=Dog()
    def say(self):
        self.t.say()
        self.c.say()
        self.d.say()
g=Garden()
print(g)
g1=Garden
print(g1)
g.say()
###########################################P60 对象与类
d =C()
d.x=2500
c.x=250
print(d.__dict__)
print(c.__dict__)
d.y=660
print(d.__dict__)
class C:
    def set_x(self,v):
        self.x=v
c=C()
print(c.__dict__)
c.set_x(5200)
print(c.__dict__)
class C:
    x=100
    def set_x(self,v):
        x=v
c=C()
c.set_x(250)
print(c.x)
C.x=2500
print(c.x)