Python作业，大佬救救孩子

import math
class Cylinder():
    def __init__(self, radius, height):
        self.radius = radius
        self.height = height
    def GetVolume(self):
        return math.pi * self.radius * self.radius * self.height

radius = float(input())
height = float(input())
print("radius:%.2f,height:%.2f" % (radius,height))
c = Cylinder(radius, height)
print("volume:%.2f" % c.GetVolume())