Question

运行此代码时：

print("You wake up with a jolt. \"Damn it's dark in here\"")
print("To the north is the cell door, i think")
print("To the west is a cot, maybe")
print("To the east is a toilet")
print("and to the south is a window, it looks like night time")

cellDoor = False
toilet = False
cot = False
window = False
sawClock = False

while(cellDoor == False or toilet == False or cot == False or window == False):
    insideCell = raw_input("Where should i go?").lower()

    if insideCell == "north" or "go north" or "walk north":
        cellDoor = True
        print("I can vaugly make out where the walkway ends and drops to the prison     floor")
    elif insideCell == "east" or "go east" or "walk east":
        toilet = True
        print("Ugh, this smells used")
    elif insideCell == "west" or "go west" or "walk west":
        cot = True
        print("<sarcasm> Oh boy, that looks comfortable. I cannot wait to sleep on that      </sarcasm>")
    elif insideCell == "south" or "go south" or "walk south":
        window = True
        print("It's night time, I wonder when specifically")
        print("I remember a clock on the western wall, i should look there")
        while(sawClock == False):
            findClock = raw_input("Look at the clock").lower()
            if findClock == "look west" or "turn west":
                print("It's about 23:00, i should get some sleep, after i finsih exploring, of course")
                sawClock = True

print("Let's get some sleep now")

什么时候我打字＆＃34;去南方＆＃34;或其他任何东西，它打印的内容只有在键入后才会发生＆＃34; go north＆＃34;等等。我需要这样才不会发生，我需要在发出适当的命令时才发生每件事。

目前的输出是：

You wake up with a jolt. "Damn it's dark in here"
To the north is the cell door, i think
To the west is a cot, maybe
To the east is a toilet
and to the south is a window, it looks like night time
Where should i go?south
I can vaugly make out where the walkway ends and drops to the prison floor
Where should i go?north
I can vaugly make out where the walkway ends and drops to the prison floor
Where should i go?west
I can vaugly make out where the walkway ends and drops to the prison floor
Where should i go?east
I can vaugly make out where the walkway ends and drops to the prison floor
Where should i go?

Answer 1

非空字符串的布尔值始终为true，因此if insideCell == "north" or "go north" or "walk north":将始终为真，因为"go north"为true。你可以解决它：

if insideCell in ["north", "go north", "walk north"]:

对所有其他ifs或elif进行此更改。

Answer 2

你做不到：

if insideCell == "north" or "go north" or "walk north":

你应该这样做：

if insideCell == "north" or insideCell == "go north" or insideCell ==  "walk north":

Answer 3

在表达式中：

if insideCell == "north" or "go north" or "walk north":

你必须检查所有这些的相等性，而不仅仅是第一个（其他两个“或”总是True，所以这个条件总是True）。

检查：“/”是否更容易检查“北”是否在用户输入中，而不是检查，检查：

if "north" in insideCell:

这是更加pythonic的方式，而且它对于用户输入更加强大，即使用户进入“向北走”或“向北旅行”也会工作

无论如何，python中的程序打印出错误的东西

3 个答案: