class Rectangle:
'这是一个矩形类'
def __init__(self,length,width):
if isinstance(length,(int,float)) and isinstance(width,(int,float)):
self.length = length
self.width = width
else:
raise TypeError
#return None
def area(self):
areas = self.length * self.width
return areas
def __str__(self):
return '宽为%s,高为%s'%(self.width,self.length)
def __repr__(self):
return '面积为:%s'%(self.area())
def __call__(self):
return '这是一个call方法'
def __add__(self,other):
add_length = self.length + other.length
add_width = self.width + other.width
return add_length,add_width
b = Rectangle(3,5)
b.__dict__
b.__doc__
#print(b)
b
c = Rectangle(4,6)
