无法跳出while循环

Question

我正在写一个糟糕的基于文本的冒险，但我不知道如何打破这个循环。我将尝试在此处发布相关内容。如果我的 cmets 没有充分解释我想要做什么，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()

预期的行为是我会在输入中输入“exit”或“leave”或“club”，home() 函数将结束，club() 函数将启动。实际发生的情况是终端不断打印“你在房间里”并不断给我输入。

如果必须，我会发布我完全未删节的代码，但我不想这样做，因为实际的冒险并不完全...专业。

Answer 1

break 所做的是打破home() 函数中的循环。所以当它中断时，它会回到开头

while finished == 0:

并将继续重复该输入。

您还必须在home()（和club()）之后提供break：

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。 While 循环不应该用于这样的事情（除非您尝试获取exit 或leave 的输入）

你也可以去掉最后的 while 循环。

Answer 2

虽然我从来没有真正理解代码的含义，但这里的解决方案是有效的。您还没有说明变量是全局变量还是局部变量，以及当可以使用简单的 if-else 语句时为什么要使用循环

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 3

我认为您需要将current_room 设为全局变量。因为home()中的变量current_room和while finished中的变量作用域不同。

我猜你想要达到的目标如下。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()