Question

我是编程新手。我只是在跟随由Udacity托管的python课程。在此，以下规定的代码不会打印功能返回。

请大家帮我，谢谢！

def cylinder_volume (height, radius = 5):
pi = 3.14159
return height * pi * radius ** 2

print (cylinder_volume(10, 5))

Answer 1

我整理了一些程序错误（我还记得也开始学习python）。您不应该在函数定义中将变量radius设置为5，而是在调用函数时输入变量，无论如何，这里的代码已经整理了一些注释，希望对您有所帮助

import math

def cylinder_volume (height, radius):
    pi = math.pi    # more accurate representation of Pi using pythons math library
    volume = height * pi * radius ** 2  # Creates a variable with volume value
    print(volume)   # prints out the volume
    return volume   # returns the volume

cylinder_volume(1, 5)   # using this uses only the print statement in the function

print("-----------------")


print(cylinder_volume(1, 5))    # using this prints the print statement in the function as well as the value returned

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1 个答案: