While循環在Python中不起作用

Question

該程序將允許我輸入值，但它們不是計算值，也不會打印。 我已經將endProgram輸入全部移開，它只是將其變成無限循環。

def main ():
 endProgram = "no"
 while endProgram == "no":
        totalBottles = getBottles()
        totalPayout = calcPayout(totalBottles)
        printInfo = (totalBottles, totalPayout)
        endProgram = raw_input("Do you want to end the program? Enter yes or no:") 

def getBottles():
    counter = 1
    totalBottles = 0
    todayBottles = 0

    while counter <= 7:
        todayBottles = input("Enter number of bottles for today:")
        totalBottles = totalBottles + todayBottles
        counter = counter + 1
    return totalBottles

def calcPayout(totalBottles):
    totalPayout = 0
    totalPayout = totalBottles * .10
    return totalPayout
def printInfo(totalBottles,totalPayout):
    print "The total bottles collected is:",totalBottles
    print "The total payout is $ :",totalPayout

Answer 1

要打印，您必須在行中刪除= （因為它將值分配給變量）

 printInfo = (totalBottles, totalPayout)

它一定要是：

 printInfo(totalBottles, totalPayout)

這樣，您可以通過變量調用函數。

Answer 2

您正在將一個元組 （totalBottles，totalPayout）分配給一個函數，這就是為什么不起作用的原因。

printInfo是一個僅打印而沒有返回值的函數，因此請更改語句

printInfo = (totalBottles, totalPayout)

用於printInfo(totalBottles, totalPayout)