返回函数中的变量

Question

我有这个程序，我想要使用这些函数来请求高度，宽度和长度，并将它们作为单独的变量，以便我可以使用它们来绘制龟图形。此外，使用我的getColor函数，我想要返回垃圾箱，并且可以单独调色，以便我可以将它们应用于龟图形。我对参数感到困惑;他们会在这里有用吗？

def main(): 

    print ("The bin dimensions are: ",(getDim())) 
    numofcans = getCans() 
    print ("You are recycling ",numofcans,"cans.") 
    print("Your bin color is ",getColor()) 


def getDim(): 

    height = int(input("Enter the bins height (40 to 60): ")) 
    width = int(input("Enter the bins width (40 to 60): ")) 
    length = int(input("Enter the bins length (40 to 60): ")) 
    while height and width and length not in range(40,61): 
     print("You entered a wrong value") 
     height = int(input("Enter the height (40 to 60: ")) 
     width = int(input("Enter the width(40 to 60: ")) 
     length = int(input("Enter the length (40 to 60: ")) 
    if height and width and length in range(40,61): 
     return height, width, length 

def getCans(): 

    cans = int(input("Enter the amount of cans (10,1000): ")) 
    if cans in range(10,1001): 
     return cans 
    while cans not in range(10,1001): 
     cans = int(input("Invalid number, please enter the amount of cans (10,1000): ")) 
     return cans 

def getColor(): 
    bincolor = int(input("Color menu \n 1 = 'blue' \n 2 = 'red' \n 3 = 'green' \n 4 = 'magenta' \nPick the bin color: ")) 
    while bincolor not in range(1,5): 
     bincolor = int(input("Color menu \n 1 = 'blue' \n 2 = 'red' \n 3 = 'green' \n 4 = 'magenta' \nPick the bin color: ")) 
    while bincolor in range(1,5): 
     if bincolor == 1: 
      bincolor = "blue" 
     elif bincolor == 2: 
      bincolor = "red" 
     elif bincolor == 3: 
      bincolor = "green" 
     elif bincolor == 4: 
      bincolor = "magenta" 


    cancolor = int(input("Color menu \n 1 = 'blue' \n 2 = 'red' \n 3 = 'green' \n 4 = 'magenta' \nPick the can color: ")) 
    while cancolor not in range(1,5): 
     cancolor = int(input("Color menu \n 1 = 'blue' \n 2 = 'red' \n 3 = 'green' \n 4 = 'magenta' \nPick the can color: ")) 

    while cancolor in range(1,5): 
     if cancolor == 1: 
      cancolor = "blue" 
     elif cancolor == 2: 
      cancolor = "red" 
     elif cancolor == 3: 
      cancolor = "green" 
     elif cancolor == 4: 
      cancolor = "magenta" 
     return bincolor, cancolor 






main() 

回溯：

>>> 
Enter the bins height (40 to 60): 45 
Enter the bins width (40 to 60): 46 
Enter the bins length (40 to 60): 47 
The bin dimensions are: (45, 46, 47) 
Enter the amount of cans (10,1000): 101 
You are recycling 101 cans. 
Color menu 
1 = 'blue' 
2 = 'red' 
3 = 'green' 
4 = 'magenta' 
Pick the bin color: 1 
Color menu 
1 = 'blue' 
2 = 'red' 
3 = 'green' 
4 = 'magenta' 
Pick the can color: 3 
Your bin color is ('blue', 'green') 
>>> 

Answer 1

像

colors = getColor() 

first = colors[0] 
second = colors[1] 

应该做的伎俩

希望我没有记错的话，手头上没有蟒蛇现在。

参见：How do you return multiple values in Python?

Answer 2

你已经返回元组，所以你可以简单的调用函数，并将其解压到新的变量，而不是将它们打印的：

def main(): 
    height, width, length = getDim() 
    numofcans = getCans() 
    bincolor, cancolor = getColor() 
    # go on to do rest of program 
    ...