from math import pi as PI
def circlearea(r):
'''计算圆面积'''
if isinstance(r,(int,float)): #确保接受的参数为int or float
return PI*r*r
else:
print('you must give me an integer or float as radius!')
r=int(input())
print(circlearea(r))
计算圆面积python
最新推荐文章于 2024-08-27 21:07:18 发布