不能突破时间循环

Question

我正在写一个糟糕的基于文本的冒险，我不知道如何打破这个循环。我试着把相关的东西贴在这里。如果我的评论没有充分解释我想做什么，请告诉我。

chained = 1
finished = 0

# home() and club() act as rooms in the game
def home():
    while chained == 1:
        # there's a way to unchain yourself that works
        chained = 0
    while chained == 0:
        print 'your are in the room'
        input = raw_input('> ')
        if 'exit' in input or 'leave' in input or 'club' in input:
            current_room = 'club'
            break

def club():
    print "this works"

# These sort of move you around the rooms.
# current_room keeps track of what room you're in
current_room = 'home'
while finished == 0:
    if current_room == 'home':
        home()
    if current_room == 'club':
        club()

预期的行为是将“退出”或“离开”或“俱乐部”输入到输入中，home()函数将结束，club()函数将启动。实际上，终端一直在打印“您在房间里”，并一直给我输入。

如果必要的话，我会发布我的完全没有删节的代码，但我宁愿不这样做，因为实际的冒险并不是exactly...professional。

Answer 1

虽然我从来没有真正理解这段代码的含义，但是这里的解决方案是有效的。您还没有说明变量是全局的还是局部的，以及为什么可以使用简单的 if -语句时使用循环？

chained = 0
finished = 0

# home() and club() act as rooms in the game
def home():
    global chained,current_room
    if chained == 1:
        # there's a way to unchain yourself that works
        chained = 0
    if chained == 0:
        print 'your are in the room'
        input = raw_input('> ')
        if 'exit' in input or 'leave' in input or 'club' in input:
            current_room = 'club'
            club()

# Not sure if finished is a local or global variable
def club():
    global finished,current_room
    print "this is messy code!!"
# These sort of move you around the rooms.
# current_room keeps track of what room you're in
    current_room = 'home'
    if finished == 0:
        if current_room == 'home':
            home()
        if current_room == 'club':
            club()
home()

Answer 2

break正在做的是突破home()函数中的循环。因此，当这种情况发生时，它会追溯到

while finished == 0:

将继续重复这一输入。

您还必须在home() (和club())之后提供一个club()：

while finished == 0:
    if current_room == 'home':
        home()
        break
    if current_room == 'club':
        club()
        break

顺便说一句，您的代码非常混乱。虽然循环不应该用于这种情况(除非您试图获得exit或leave的输入)

你还不如去掉最后的while循环。

Answer 3

我认为您需要使current_room成为一个全局变量。因为home()中的变量home()和while finished中的变量有不同的作用域。

以下是你想要达到的目标。查找python变量范围

chained = 1
finished = 0
current_room = 'home'

# home() and club() act as rooms in the game
def home():
    global chained
    # without the following line current_room has local scope and updating its value will not be
    # reflected in the while at the end
    global current_room 
    while chained == 1:
        # there's a way to unchain yourself that works
        chained = 0
    while chained == 0:
        print 'your are in the room'
        input = raw_input('> ')
        if 'exit' in input or 'leave' in input or 'club' in input:
            current_room = 'club'
            break

def club():
    print "this works"

# These sort of move you around the rooms.
# current_room keeps track of what room you're in
while finished == 0:
    if current_room == 'home':
        home()
    if current_room == 'club':
        club()