无法弄清楚python中的EOF错误[关闭]

Question

我正在做Learn Python the Hard Way 一书中的练习35，我似乎无法弄清楚这个错误。这可能很愚蠢，但我似乎无法弄清楚。

错误出现在第 75、69 和 26 行，模块 start()、start bear_room() 和 bear_room next2 = raw_input("> ")

from sys import exit


def gold_room():
    print "This room is full of gold. How much do you take?"
    next1 = raw_input("< ")
    if "0" in next1 or "1" in next1:
        how_much = int(next1)
    else:
        dead("Man, learn to type a number.")

    if how_much < 50:
        print "Nice you're not greedy, you win!"
        exit(0)
    else:
        dead("You greedy bastard!")


def bear_room():
    print "There is a bear here."
    print "The bear has a bunch of honey."
    print "The fat bear is in front of another door."
    print "How are you going to move the bear?"
    bear_moved = False
    while True:
        next2 = raw_input("> ")
    if next2 == "take honey":
        dead("The bear looks at you then pimp slaps your face off.")
    elif next2 == "taunt bear" and not bear_moved:
        print "The bear has moved from the door. You can go through it now."
        bear_moved = True
    elif next2 == "taunt bear" and bear_moved:
        dead("The bear gets pissed off and chews your crotch off.")
    elif next2 == "open door" and bear_moved:
        gold_room()
    else:
        print "I got no idea what that means."


def cthulu_room():
    print "Here you see the great evil Cthulu."
    print "He, it, whatever stares at you and you go insane."
    print "Do you flee for your life of eat your head?"
    next3 = raw_input("> ")
    if "head" in next3:
        dead("Well that was tasty!")
    elif "flee" in next3:
        start()
    else:
        cthulu_room()


def dead(why):
    print why, "Good job!"
    exit(0)


def start():
    print "You are in a dark room."
    print "There is a door to your right and left."
    print "Which one do you take?"
    next4 = raw_input("> ")
    if next4 == "left":
        bear_room()
    elif next4 == "right":
        cthulu_room()
    else:
        dead("You stumble around the room until you starve.")


start()

Answer 1

我没有遇到您的具体错误，但是根据您的描述很难判断我是否遇到了错误。将来，您应该发布带​​有行异常的堆栈跟踪。

我发现你的代码中有一个无限循环。这部分：

while True:
    next2 = raw_input("> ")
if next2 == "take honey":
# snip

永远不会退出。 True 将始终为 True，因此它只会不断提示您使用 raw_input。通过将该函数的其余部分更改为如下所示...

while True:
    next2 = raw_input("> ")
    if next2 == "take honey":
        dead("The bear looks at you then pimp slaps your face off.")
    elif next2 == "taunt bear" and not bear_moved:
        print "The bear has moved from the door. You can go through it now."
        bear_moved = True
    elif next2 == "taunt bear" and bear_moved:
        dead("The bear gets pissed off and chews your crotch off.")
    elif next2 == "open door" and bear_moved:
        gold_room()
    else:
        print "I got no idea what that means."

...我们告诉 Python 获取存储在 next2 中的提示结果并评估其余的检查。这样，它将通过调用诸如 dead() 或 gold_room() 等其他函数来退出该函数。即使 while True 条件从未退出，这也会退出 bear_room() 函数。当条件计算为 False 时退出 While 循环。因为 True 永远不会等于 False，所以我们必须以其他方式退出，例如调用另一个函数，如 dead()，该函数将通过调用 exit() 终止。