Python 显示没有错误代码，但没有 output

Question

我是编码新手，所以我希望这是一个小错误。 以下是纸质承运人工资分配的代码。 我没有收到错误代码，但没有 output，甚至打印功能也没有显示。 请帮忙

# This program will calculate the weekly pay of a paper carrier.

# Developer: Hannah Ploeger Date: 08/30/2022

def main():
    # initialize variables
    paperCost = 4
    commission = 0.05

    # prompt user for number of papers
    numPaper = eval(input("How many papers are delivered on your route?"))

    # prompt user for days of delivery
    numDays = eval(input("How many days was the paper delivered this week"))

    # prompt user for tips recieved
    numTips = input("How much did you recieve in tips this week?")

    # calculate salary
    weekPay = ((numPaper * numDays) * paperCost) * commission
    totalPay = weekPay + numTips

    # display output
    print("This week you delivered", numPaper, "papers")
    print("Your salary this week is $", weekPay)
    print("Your total tips were $", numTips)
    print("Your total pay is $", totalPay)

在此处输入图像描述

Answer 1

添加这个：

if __name__ == "__main__":
    main()

Answer 2

只需调用主 function

def main():
   # initialize variables
   paperCost = 4
   commission = 0.05

   # prompt user for number of papers
   numPaper = eval(input("How many papers are delivered on your route?"))

   # prompt user for days of delivery
   numDays = eval(input("How many days was the paper delivered this week"))

   # prompt user for tips recieved
   numTips = input("How much did you recieve in tips this week?")

   # calculate salary
   weekPay = ((numPaper * numDays) * paperCost) * commission
   totalPay = weekPay + numTips

   # display output
   print("This week you delivered", numPaper, "papers")
   print("Your salary this week is $", weekPay)
   print("Your total tips were $", numTips)
   print("Your total pay is $", totalPay)

main() # calling main function