Python - 如何将定义的变量从一个 function 获取到另一个 function？

Question

我已将其简化为：

def hang():
p = 1
while p == 1:
    gameinput = input("Please select a gamemode, Type [1] for one player or Type [2] for two player: ")
    if gameinput == "2":
     def two_player_word():
         print("2")
    elif gameinput == "1":
     def one_player_word():
         print("1")


def hangman():
    if gameinput == "2":
        word = two_player_word()
    elif gameinput == "1":
        word = one_player_word()
    print("Word")

def main():
    gamerestart = 1
    while gamerestart == 1:
        print()
        print("Would you like to play again?")
        gameoverinput = input("Press [1] to play again, Press [2] to exit program. ")
        if gameoverinput == "1":
            for i in range(0, 25):
                print()
            hangman()
        elif gameoverinput == "2":
            print("Thank you for playing, goodbye....")
            time.sleep(2)
            quit()
        else:
            print("Invaild option.")

if  __name__ == "__main__":
    main()

我之前在 'hang()' 中定义了游戏输入，它收集用户输入等等。 我的问题在'hangman（）'中我需要再次游戏输入来制作变量词（它是这样制作的，因此用户可以在生成随机词时制作一个词（two_player_word）或一个玩家（one_player_word（）

如果没有游戏输入在 function 中，它可以完美运行，但是在玩家赢或输之后，我希望它让用户决定是否要更改游戏模式，如 main() 所示。

还有更多代码，但认为仅使用它来尝试找出问题会更容易。

Answer 1

只需将游戏输入从hang hangman gameinput参数。

def hang():
    while True:
        gameinput = input("Please select a gamemode, Type [1] for one player or Type [2] for two player: ")
        if gameinput not in ("1", "2"):
            continue
        hangman(gameinput)
        break


def hangman(gameinput):
    if gameinput == "2":
        word = two_player_word()
    elif gameinput == "1":
        word = one_player_word()
    print("Word")

Answer 2

有两个问题会导致您的代码失败（缩进除外）。

1. 您正在定义嵌套函数（ one/two_player_word ），然后尝试从 function （未定义）外部调用。 您可以通过在 function hang()之外定义函数来更改此设置。
2. hangman()使用 gameinput 变量，但它没有定义也没有提供。 您可以通过将其作为参数添加到 function 调用来更改此设置。

您调整后的代码可以像这样工作：

import time

def one_player_word():
  print("1")

def two_player_word():
  print("2")

def hang():
  p = 1
  while p == 1:
      gameinput = input("Please select a gamemode, Type [1] for one player or Type [2] for two player: ")
      if gameinput == "2":
        two_player_word()
      elif gameinput == "1":
        one_player_word()

def hangman(gameinput):
    if gameinput == "2":
        word = two_player_word()
    elif gameinput == "1":
        word = one_player_word()
    print("Word")

def main():
    gamerestart = 1
    while gamerestart == 1:
        print()
        print("Would you like to play again?")
        gameoverinput = input("Press [1] to play again, Press [2] to exit program. ")
        if gameoverinput == "1":
            for i in range(0, 25):
                print()
            hangman(gameoverinput)
        elif gameoverinput == "2":
            print("Thank you for playing, goodbye....")
            time.sleep(2)
            quit()
        else:
            print("Invaild option.")

if  __name__ == "__main__":
    main()