2022-10-14 学习Python-Day18
又学了两节{:10_275:}P65-P66###########################################P65 对象与类
class C:
def __init__(self,x):
self.__x=x
def set_x(self,x):
self.__x=x
def get_x(self):
print(self.__x)
c=C(250)
c.get_x()
c.set_x(520)
print(c.__dict__)
print(c._C__x)
class D:
def __func(self):
print('Hello Fishc.')
d =D()
d._D__func()
class C:
def __init__(self,x):
self.x=x
c=C(250)
print(c.x)
c.y=520
print(c.__dict__)
c.__dict__['z']=666
print(c.z)
class C:
__slots__ = ['x','y','z']
def __init__(self,x):
self.x=x
c=C(250)
print(c.x)
c.y=520
print(c.y)
# print(c.z)
###########################################P66 对象与类
class CapStr(str):
def __new__(cls, string):
string=string.upper()
return super().__new__(cls,string)
cs=CapStr('FishC')
print(cs)
print(cs.lower())
class C:
def __init__(self):
print('我来了')
def __del__(self):
print('我走了')
c=C()
del c
c=C()
d=c
del c
del d
class D:
def __init__(self,name):
self.name=name
def __del__(self):
global x
x=self
d=D('小甲鱼')
print(d.name)
del d
print(x.name)
class E:
def __init__(self,name,func):
self.name=name
self.func=func
def __del__(self):
self.func(self)
def outter():
x=0
def inner(y=None):
nonlocal x
if y:
x=y
else:
return x
return inner
f =outter()
e=E('小甲鱼1',f)
print(e.name)
del e
g=f()
print(g.name)
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