您可以定义一个变量(例如break_statement)，然后在发生两次中断条件时将其更改为不同的值，并在if语句中使用它来中断第二个循环。

while True:
    break_statement=0
    while True:
        ok = raw_input("Is this ok? (y/n)")
        if ok == "n" or ok == "N": 
            break
        if ok == "y" or ok == "Y": 
            break_statement=1
            break
    if break_statement==1:
        break

# this version breaks up to a certain label

break_label = None
while True:
    # snip: print out current state
    while True:
        ok = get_input("Is this ok? (y/n)")
        if ok == "y" or ok == "Y":
            break_label = "outer"   # specify label to break to
            break
        if ok == "n" or ok == "N":
            break
    if break_label:
        if break_label != "inner":
            break                   # propagate up
        break_label = None          # we have arrived!
if break_label:
    if break_label != "outer":
        break                       # propagate up
    break_label = None              # we have arrived!

#do more processing with menus and stuff

这不是最漂亮的方法，但在我看来，这是最好的方法。

def loop():
    while True:
    #snip: print out current state
        while True:
            ok = get_input("Is this ok? (y/n)")
            if ok == "y" or ok == "Y": return
            if ok == "n" or ok == "N": break
        #do more processing with menus and stuff

我很确定你也可以用递归解出一些东西，但我不知道这对你来说是不是一个好选择。

你可以使用一个标志来打破循环:

if found:
  break

这里，'found'是标志，你最初将它设置为False，然后在循环中使用这段代码。

found = False
for table_height in range(500):
  if found:
    break

下面是三个for循环的完整代码:

found = False
for table_height in range(500):
  if found:
    break
  for cat_height in range(500):
    if found:
      break

    for tort_height in range(500):
      equation1 = table_height + cat_height == tort_height + 170
      equation2 = table_height + tort_height == cat_height + 130
      if equation1 and equation2:
        print('table', table_height, '  cat', cat_height, '  tortoise', tort_height)
        found = True
        break

在这段代码中，如果等式1和等式2为True，它将设置'found'标志为True，并跳出最里面的for循环，它也将跳出其他两个for循环，因为'found'为True。

keeplooping = True
while keeplooping:
    # Do stuff
    while keeplooping:
          # Do some other stuff
          if finisheddoingstuff():
              keeplooping = False

或者类似的东西。

您可以在内部循环中设置一个变量，并在内部循环退出后立即在外部循环中检查它，如果合适的话可以中断。我有点喜欢GOTO方法，前提是你不介意使用愚人节的笑话模块——它不是python的，但它确实有意义。

# this version uses a level counter to choose how far to break out

break_levels = 0
while True:
    # snip: print out current state
    while True:
        ok = get_input("Is this ok? (y/n)")
        if ok == "y" or ok == "Y":
            break_levels = 1        # how far nested, excluding this break
            break
        if ok == "n" or ok == "N":
            break                   # normal break
    if break_levels:
        break_levels -= 1
        break                       # pop another level
if break_levels:
    break_levels -= 1
    break

# ...and so on