python - 中断外部循环 Python 函数其他选项

Question

我有一些代码:

def playAgain1():
    print("Would you like to keep boxing or quit while you are ahead? (y/n)")
    playAgain = input().lower()
    if(playAgain.startswith('y') == False):
        print("Whatever you chicken.")
        break

如果 playAgain() 不以 y 开头，我希望它打破循环。每当我尝试时，都会收到错误:

'break' outside loop

我怎样才能更好地编写它以使其发挥作用？

Answer 1

正如 Matt Bryant 的回答所述，您不能在循环之外中断，而只能从函数中返回。我想补充一点，您可能需要从函数返回一个值，以便主程序循环知道是返回开始还是退出:

def main():
    while True:
        # main game code goes here
        if not playAgain():
            break

def playAgain():
    print("Would you like to keep boxing or quit while you are ahead? (y/n)")
    response = input().lower()
    return response.startswith('y')