摇滚剪刀Python程序: winOrLose()接受两个参数(0给定)

Question

我正在编写一个程序，发挥岩石剪刀与用户。我得运行这个程序5次。我用的是蟒蛇。每当我运行程序并输入"R“、"S”或"P“时，程序将导致错误：

TypeError: winOrLose() takes exactly 2 arguments (0 given)  

以下是我的节目：

from myro import *  
from random import *  

def userOptions():  
    print "Press R for Rock"  
    print "Press P for Paper"
    print "Press S for Scissors"

choice = raw_input("Your choice is: ")

if choice == "R":
    return "Rock"
if choice == "P":
    return "Paper"
if choice == "S":
    return "Scissors"
else:
    userOptions()


def computerRandom():
    options = ["Rock", "Paper", "Scissors"]
    cGuess = randint(0,2)
    return options[cGuess]

def winOrLose(userChoice, computerChoice):
    if userChoice == computerChoice:
        return "Tie"
    if userChoice == "Rock" and computerChoice == "Paper":
        return "Computer Wins"
    if userChoice == "Paper" and computerChoice == "Scissors":
        return "Computer Wins"
    if userChoice == "Scissors" and computerChoice == "Rock":
        return "Computer Wins"
    else:
        return "User Wins"

    while True:
        userChoice = userOptions()
        computerChoice = computerRandom()
        print "User Chose: ", userChoice
        print "Computer Chose: ", computerChoice
        result = winOrLose(userChoice, computerChoice)
        if result == "Tie":
            print "It is a tie"
        elif result == "Computer Wins":
            print "Computer Wins"
        else:
            print "User Wins"

def main():
    for index in range(1,5,1):
        speak("Rock Paper Scissors Shoot")
        userOptions()
        computerRandom()
        winOrLose()

main()

请有人帮帮我，我现在有点绝望，想办法解决这个问题。

谢谢

Answer 1

在主函数中不传递任何参数。

def main():
    for index in range(1,5,1):
        speak("Rock Paper Scissors Shoot")
        userOptions()
        computerRandom()
        winOrLose()

应：

def main():
    for index in range(1,5,1):
        speak("Rock Paper Scissors Shoot")
        userChoice = userOptions()
        computerChoice = computerRandom()
        winOrLose(userChoice, computerChoice)

另一个问题是，您尝试使用for index in range(1,5,1)运行5次，但是您的winOrLose函数中有一个无限循环，所以在第一次调用它之后永远不会退出它：

def winOrLose(userChoice, computerChoice):
    if userChoice == computerChoice:
        return "Tie"
    if userChoice == "Rock" and computerChoice == "Paper":
        return "Computer Wins"
    if userChoice == "Paper" and computerChoice == "Scissors":
        return "Computer Wins"
    if userChoice == "Scissors" and computerChoice == "Rock":
        return "Computer Wins"
    else:
        return "User Wins"

    while True: # <=== infinite loop here.
        userChoice = userOptions()
        computerChoice = computerRandom()
        print "User Chose: ", userChoice
        print "Computer Chose: ", computerChoice
        result = winOrLose(userChoice, computerChoice)
        if result == "Tie":
            print "It is a tie"
        elif result == "Computer Wins":
            print "Computer Wins"
        else:
            print "User Wins"

再次播放的决定最有可能不是在winOrLose函数中，而是在它自己的函数中。

您还在userOptions函数中出现了缩进错误，尽管可能只是在这里复制它。

def userOptions():  
    print "Press R for Rock"  
    print "Press P for Paper"
    print "Press S for Scissors"
# below code block should be indented too.
choice = raw_input("Your choice is: ")

if choice == "R":
    return "Rock"
if choice == "P":
    return "Paper"
if choice == "S":
    return "Scissors"
else:
    userOptions()

Answer 2

正如错误消息告诉您的那样，您需要为您的winOrLose函数提供两个参数。您从userOptions()和computerRandom()返回值，但没有将这些值赋值给任何变量：

def main():
    for index in range(1,5,1):
        speak("Rock Paper Scissors Shoot")
        user_choice = userOptions()
        computer_choice = computerRandom()
        winOrLose(user_choice, computer_choice)

main()

Answer 3

正如错误中所指定的，您没有将参数传递给主函数中的函数winOrLose。

def main():
    for index in range(1,5,1):
        ...
        ...
        winOrLose()     # in this statement you are not passing any arguments