4.24博客

python学习

import math

class Shape:

def cal_perimeter(self):

    pass

def cal_area(self):

    pass

def cal_volume(self):

    pass

class Point(Shape):

def \__init_\_(self,x=0,y=0):

    self.x = x

    self.y = y

def setX(self,x):

    self.x = x

def setY(self,y):

    self.y = y

def getX(self):

    return self.x

def getY(self):

    return self.y

def display(self):

    print('({}'.format(self.x)+',{})'.format(self.y))

class Circle(Point):

def \__init_\_(self,r):

    Point.\__init_\_(self,x=0,y=0)

    self.r = r

def setR(self,r):

    self.r = r

def getR(self):

    return self.r

def cal_perimeter(self):

    perimeter=round(2\*3.14\*self.r,2)

    return perimeter

def cal_area(self):

    area=round(3.14\*self.r\*\*2,2)

    return area

def display(self):

    print('圆的周长：',self.cal_perimeter())

    print('圆的面积：',self.cal_area())

class Ball(Circle):

def \__init_\_(self,r):

    Circle.\__init_\_(self,r=10)

def cal_volume(self):

    perimeter=round((4/3)\*3.14\*(self.r\*\*3),2)

    return perimeter

def cal_area(self):

    area=round(3.14\*self.r\*\*2\*4,2)

    return area

def display(self):

    print('球的体积：',self.cal_volume())

    print('球的面积：',self.cal_area())

class Circular(Circle):

def \__init_\_(self,r,h):

    Circle.\__init_\_(self,r=10)

    self.h = h

def cal_volume(self):

    perimeter=round(3.14\*(self.r\*\*2)\*self.h,2)

    return perimeter

def cal_area(self):

    area=round(3.14\*2\*self.r\*self.h+2\*3.14\*self.r\*\*2,2)

    return area

def display(self):

    print('圆柱的体积：',self.cal_volume())

    print('圆柱的面积：',self.cal_area())

class CircularCone(Circle):

def \__init_\_(self,r,h):

    Circle.\__init_\_(self,r=10)

    self.h = h

def cal_volume(self):

    perimeter=round((1/3)\*3.14\*(self.r\*\*2)\*self.h,2)

    return perimeter

def cal_area(self):

    area=round(3.14\*self.r\*(self.r+math.sqrt(self.r\*\*2+self.h\*\*2)),2)

    return area

def display(self):

    print('圆锥的体积：',self.cal_volume())

    print('圆锥的面积：',self.cal_area())

p = Point(10,5)

p.display()

c = Circle(10)

c.display()

r = float(input("请输入球体半径："))

b = Ball(r)

b.display()

r = float(input("请输入圆柱底面半径："))

h = float(input("请输入圆柱的高："))

cc = Circular(r,h)

cc.display()

r = float(input("请输入圆锥底面半径："))

h = float(input("请输入圆锥的高："))

cn = CircularCone(r,h)

cn.display()