python 超类Shape表示平面图形变量为color，子类为Circle和Rectangle

（"---"分隔开来的表示单独一个页面）

# 平面   
class Shape:
    def __init__(self,c):
        self.__c = c
    def setColor(self,c):
        self.__c = c
    def getColor(self):
        return self.__c
    def printInf(self):
        print(self.__c)

--------------------------------------------------------------------

#圆

from Shape import Shape
class Circle(Shape):
    def __init__(self,c,r):
        super().__init__(c)
        self.__r = r
    def getArea(self):
        return 3.14*self.__r**2
    def getC(self):
        return 2*3.14*self.__r

--------------------------------------------------------------------

#长方形

from Shape import Shape
class Rectangle(Shape):
    def __init__(self,ys,chang,kuan):
        super().__init__(ys)
        self.__chang = chang
        self.__kuan = kuan
    def Area(self):
        return self.__chang*self.__kuan
    def C(self):
        return 2*(self.__chang+self.__kuan)

--------------------------------------------------------------------

#调用对象

from Shape import Shape
from Circle import Circle
from Rectangle import Rectangle
c = Circle("red",12)
print(c.getArea(),c.getColor(),c.getC())
a = Rectangle("red",10,10)
print(a.Area(),a.getColor(),a.C())