我怎样才能让我的主程序首先出现，我怎样才能在我的主程序中调用我的函数？

Question

Right now I've tried making my main program the main "function" in my code. But when I run it, the analysis bit comes up first which is not what i want. I want to make my code to do the following: output the main program so the user can input the marks total and input the marks scored in a test.

"Write a program that inputs a mark from the keyboard for sections of a project: 'analysis', 'design', 'implementation' and 'evaluation'. The program should output the total mark, the grade, and how many more marks were needed to get into the next mark band."

That was my task.

    def analysis():
        print("Welcome to the analysis section")
        marktotal=int(input("Input mark total which is out of /100"))
        marks=int(input("Input marks"))
        totalanalysis=print("You got",marks,"/",marktotal)
        if marks > 80 or marks == 80:
            print("A*")
        elif marks > 67 or marks == 67:
            print("A")
        elif marks > 54 or marks == 54:
            print("B")
        elif marks > 41 or marks == 41:
            print("C")
        elif marks > 31 or marks == 31:
            print("D")
        elif marks > 22 or marks == 22:
            print("E")
        elif marks > 13 or marks == 13:
            print("F")
        elif marks > 4 or marks == 4:
            print("G")
        elif marks ==0:
            print("U")
        return
    analysis()

    def design():
        print("Welcome to the design section")
        marktotal=int(input("Input mark total which is out of /100"))
        marks=int(input("Input marks"))
        totalanalysis=print("You got",marks,"/",marktotal)
        return

    design()


    def main():
        selectedsection=str(input("What section would you like to grade?"))#main program starts here
        if selectedsection =="analysis":
            analysis()
        elif selectedsection =="design":
            print("design")
        elif selectedsection =="implementation":
             print("implementation")
        elif selectedsection =="evaluation":
             print("evaluation")

    if __name__ == "__main__":
        main()

Answer 1

不要调用函数，从 main 函数之外的代码中删除analysis()和design() 。

Answer 2

I have taken your code and made some changes so that it is working. I hope this helps you to find your problem.

The part around your

if __name__ == "__main__":

looks strange. The main() function should be on its own line. Your posted code also had some indentation problems and the closing backticks should not be shown at the end. I cannot change your post, because I have not enough reputation for that. The occurence of the function calls "analysis(), design() and main()" seem weird. I have deleted analysis() and design(). Also I have moved main() to its own line. Hard to say, if your original code is exactly the same as the posted code.

def analysis():
    print("Welcome to the analysis section")
    marktotal=int(input("Input mark total which is out of /100"))
    marks=int(input("Input marks"))
    totalanalysis=print("You got",marks,"/",marktotal)
    if marks > 80 or marks == 80:
        print("A*")
    elif marks > 67 or marks == 67:
        print("A")
    elif marks > 54 or marks == 54:
        print("B")
    elif marks > 41 or marks == 41:
        print("C")
    elif marks > 31 or marks == 31:
        print("D")
    elif marks > 22 or marks == 22:
        print("E")
    elif marks > 13 or marks == 13:
        print("F")
    elif marks > 4 or marks == 4:
        print("G")
    elif marks ==0:
        print("U")
    return

def design():
    print("Welcome to the design section")
    marktotal=int(input("Input mark total which is out of /100"))
    marks=int(input("Input marks"))
    totalanalysis=print("You got",marks,"/",marktotal)
    return

def main():
    selectedsection=str(input("What section would you like to grade?"))#main program starts here
    if selectedsection =="analysis":
        analysis()
    elif selectedsection =="design":
        print("design")
    elif selectedsection =="implementation":
        print("implementation")
    elif selectedsection =="evaluation":
        print("evaluation")

if __name__ == "__main__":
    main()