Question

我需要将calcRectArea中的宽度值传递给calcTriArea，这样我就可以计算山墙区域，而无需再次询问宽度。我对Python和一般编程都很陌生，所以如果这是一个愚蠢的问题，请原谅我。

def main():   

    '''
main adds rectangular area and triangular area to compute the total area
    '''

    rectarea=0
    rectarea=calcRectArea(rectarea)
    print("Rectangular area is now",rectarea)

    triarea=0
    triarea=calcTriArea(triarea)
    print("Triangular area is now",triarea)

    totalarea=triarea+rectarea
    print("The total area of the first house is",totalarea)

    print("For the second house: ")

    rectarea2=0
    rectarea2=calcRectArea(rectarea2)
    print("Rectangular area of second house is now",rectarea2)

    triarea2=0
    triarea2=calcTriArea(triarea2)
    print("Triangular area of the second house is now",triarea2)

    totalarea2=triarea2+rectarea2
    print("The total area of the second house is",totalarea2) 

    totalbothhouses=totalarea+totalarea2
    print("The combined area of both houses is",totalbothhouses)


def calcRectArea(RectAreaTotal):

    '''
calcRectArea prompts the user to enter width, height, and length, computes the
front and side areas, and adds them to compute rectangular area
'''

    width=input("Enter the width: ")
    width=int(width)

    height=input("Enter the height: ")
    height=int(height)

    length=input("Enter the length: ")
    length=int(length)

    front=(width*height)
    side=(length*height)

    RectAreaTotal=(front*2)+(side*2)
    return RectAreaTotal

def calcTriArea(totalgablearea):

    '''
    calcTriArea has the user enter the gable height and computes triangular area
    '''

    gableheight=input("Enter the gable height: ")
    gableheight=int(gableheight)

    totalgablearea=(gableheight)         
    return totalgablearea                       

main()

Answer 1

您可以考虑询问计算函数之外的值：

def get_dimensions():
    height = int(input("Enter the height: "))
    width = int(input("Enter the width: "))
    length = int(input("Enter the length: "))

height, width, length = get_dimensions()

# go on to pass the values to your functions

还有其他更高级的选项，但这应该可以帮助您入门。如果您有兴趣，我可以为此答案添加一些其他选项。

Answer 2

让我们看一下函数的样子。

我可以编写一些名为foo的任意函数，使其具有单个输入和输出：

def foo(a):
    return a

f = foo(1)  # f == 1

我也可以用4输入和4输出写它：

def foo(a, b, c, d):
    return a, b, c, d

f, g, h, i = foo(1, 2, 3, 4) # f = 1, g = 2, h = 3, i = 4

函数定义允许您指定所需的任意数量的输入。您还会注意到在python中，您可以返回多个值！在您的示例中，您可以简单地更改当前函数以接受额外值。

def calcTriArea(totalgablearea):

变为

def calcTriArea(totalgablearea, calcRectArea):

现在您需要在rectArea中更改返回值，以返回额外的值。

return RectAreaTotal, width

现在您可以在triArea函数中访问calcRectArea的宽度了！你现在只需将它传递给函数就像这样：

rectarea, width=calcRectArea(rectarea)
print("Rectangular area is now",rectarea)

triarea=0
triarea=calcTriArea(triarea, width)
print("Triangular area is now",triarea)

Answer 3

您可以从main获取值并将其传递给两个函数calcRectArea和calcTriArea

检查包括main在内的函数的定义以实现更改：

def main():   

    '''
main adds rectangular area and triangular area to compute the total area
    '''

    rectarea=0
    width=input("Enter the width: ")
    width=int(width)
    rectarea=calcRectArea(rectarea,width)
    print("Rectangular area is now",rectarea)

    triarea=0
    triarea=calcTriArea(triarea,width)
    print("Triangular area is now",triarea)

    totalarea=triarea+rectarea
    print("The total area of the first house is",totalarea)

    print("For the second house: ")

    rectarea2=0
    width=input("Enter the width: ")
    width=int(width)
    rectarea2=calcRectArea(rectarea2, width)
    print("Rectangular area of second house is now",rectarea2)

    triarea2=0
    triarea2=calcTriArea(triarea2, width)
    print("Triangular area of the second house is now",triarea2)

    totalarea2=triarea2+rectarea2
    print("The total area of the second house is",totalarea2) 

    totalbothhouses=totalarea+totalarea2
    print("The combined area of both houses is",totalbothhouses)


def calcRectArea(RectAreaTotal, width):

    '''
calcRectArea prompts the user to enter width, height, and length, computes the
front and side areas, and adds them to compute rectangular area
'''



    height=input("Enter the height: ")
    height=int(height)

    length=input("Enter the length: ")
    length=int(length)

    front=(width*height)
    side=(length*height)

    RectAreaTotal=(front*2)+(side*2)
    return RectAreaTotal,width

def calcTriArea(totalgablearea, width):

    '''
    calcTriArea has the user enter the gable height and computes triangular area
    '''

    gableheight=input("Enter the gable height: ")
    gableheight=int(gableheight)

    totalgablearea=(gableheight)         
    return totalgablearea

如何将一个函数中的值传递给另一个函数？

3 个答案: