python石头剪刀gam中的错误输出

Question

我一直试图用我有限的python知识制作一个python石头布剪刀游戏，但对计算机/编程逻辑有很好的理解。这是我的密码：

def Main():
from random import randint

global computerChoice
global userChoice
print "Ok, let's play 3 rounds."

for i in range(3):
    userChoice = raw_input("Rock, paper, or scissors? ")

    computerChoice = randint(1,3)

    if userChoice == "Rock" or "rock":
        userChoice = 1
        choiceCompare()

    elif userChoice == "Paper" or "paper":
        userChoice = 2
        choiceCompare()

    else:
        userChoice = 3
        choiceCompare()

def choiceCompare():
global userChoice
global computerChoice

if userChoice == computerChoice:
    print "I chose the same thing! It's a draw!"

elif userChoice != computerChoice:

    if userChoice == 1:

        if computerChoice == 2:
            print "Yes! I chose paper, you lost!"

        elif computerChoice == 3:
            print "Dang. I chose scissors, you win."

    elif userChoice == 2:

        if computerChoice == 1:

            print "Man. I chose rock, you win."

        elif computerChoice == 3:

            print "I chose scissors, you loose!"

    else:
        if computerChoice == 1:
            print "Ha! I chose rock, you loose."

        elif computerChoice == 2:
            print "Aww, man! I chose paper, you win."


if __name__ == "__main__":
Main()

当我运行它时，我会得到完全错误的输出，比如：

Ok, let's play 3 rounds.
Rock, paper, or scissors? paper
I chose the same thing! It's a draw!
Rock, paper, or scissors? paper
I chose the same thing! It's a draw!
Rock, paper, or scissors? paper
Dang. I chose scissors, you win.

或者这个：

Ok, let's play 3 rounds.
Rock, paper, or scissors? scissors
Yes! I chose paper, you lost!
Rock, paper, or scissors? scissors
Yes! I chose paper, you lost!
Rock, paper, or scissors? scissors
Dang. I chose scissors, you win.

不过，rock似乎运转良好：

Ok, let's play 3 rounds.
Rock, paper, or scissors? rock
Dang. I chose scissors, you win.
Rock, paper, or scissors? rock
I chose the same thing! It's a draw!
Rock, paper, or scissors? rock
Yes! I chose paper, you lost!

有人能告诉我他们认为哪里不对吗？提前谢谢，利亚姆。你知道吗

另外，我认为嵌套if语句中的choiceCompare函数有问题。我不太清楚是怎么回事。另外，忽略我从运行的程序中复制文本的位中的自动着色，因为它们实际上不是python代码，而是来自程序的文本。你知道吗

Answer 1

您的问题从以下几行开始：

userChoice == "Rock" or "rock"

要么使用userChoice.lower()，要么使用userChoice in ("Rock", "rock")。一开始会有帮助，这只是第一眼。你知道吗

扩展。这里的问题是，你在比较userChoice == "Rock"，它是真的还是假的，然后你说的是or "rock"，它本身的计算结果是真的（任何非空字符串都是真的）。另请参见：this answer on string truth values。你知道吗

Answer 2

userChoice == "Rock" or "rock"

这一行的值总是true，因为它类似于（userChoice==“Rock”）或“Rock” 请尝试以下操作： userChoice==“摇滚”或userChoice==“摇滚”

有关布尔运算符的文档，请参见此链接：https://docs.python.org/3.1/library/stdtypes.html