打破功能的while循环？

Question

我正在尝试制作一个具有if / elif语句的函数，并且我希望if中断while循环。该函数用于文本冒险游戏，是/否的问题。到目前为止，这是我想出的。

def yn(x, f, g):
    if (x) == 'y':
         print (f)
         break
    elif (x) == 'n'
         print (g)

name = raw_input('What is your name, adventurer? ')
print 'Nice to meet you, '+name+'. Are you ready for your adventure?'

while True:
    ready = raw_input('y/n ')
    yn(ready, 'Good, let\'s start our adventure!', 
       'That is a real shame.. Maybe next time')

现在我不确定我是否正确使用该功能，但是当我尝试一下时，它说我不能中断该功能。因此，如果有人可以帮助我解决该问题，并且如果函数和调用函数本身的格式错误，则可以帮助我，将不胜感激。

Answer 1

您可以例外处理：

class AdventureDone(Exception): pass

def yn(x, f, g):
    if x == 'y':
         print(f)
    elif x == 'n':
         print(g)
         raise AdventureDone

name = raw_input('What is your name, adventurer? ')
print 'Nice to meet you, '+name+'. Are you ready for your adventure?'

try:
    while True:
        ready = raw_input('y/n ')
        yn(ready, "Good, let's start our adventure!",
           'That is a real shame.. Maybe next time')
except AdventureDone:
    pass
    # or print "Goodbye." if you want

这样while一遍又一遍地循环，但是在yn()函数内部引发了一个异常，该异常打破了循环。为了不打印回溯，必须捕获并处理异常。