python3关于circle的求完成classCircle:"""Acirclewitharadius."""definit(self,r):"""(Circle,number)Createacirclewitharadiusr.>>>c=Circle(10)>>>c.radius10"""谢啦，

Question

python3 关于circle的求完成
class Circle:
""" A circle with a radius. """
def __init__(self, r):
""" (Circle, number)
Create a circle with a radius r.
>>> c = Circle(10)
>>> c.radius
10
"""
谢啦，求完成

Answer 1

class Circle(object):

""" A circle with a radius. """

    def __init__(self, r):
     self.radius = r
    def getArea(self):
     return self.radius ** 2 * math.pi