检查两个值是否为sam

Question

在我的Python游戏中，我做了一个掷骰子的游戏，如果你猜对了数字，我就开始工作了，但是我正在尝试开发一个更高或更低的部分

但在我的代码中，如果值是3，你说得更高，它会说你赢了。你知道吗

示例#debug (5) Would you like to bet on higher or lower <h:l> <: l You won congrats! 但我应该在这里输而不是赢。你知道吗

        elif user_nh == 'high':
        print(system_number)
        hiLo = str(input("Would you like to bet on higher or lower <h:l> <:   "))
        if hiLo == 'l' and system_number == 1 or system_number == 2 or system_number == 3:
            print("You won congrats")
            pa = str(input("Would you like to play again y/n :>     "))
            if pa == 'n':
                break
            if pa == 'y':
                continue
            else:
                print("You supplied a invalid response, quitting game.")
                break
        if hiLo == 'h' and system_number == 4 or system_number == 5 or system_number == 6:
            print('You won congrats!')
            pa = str(input("Would you like to play again y/n :>     "))
            if pa == 'n':
                break
            if pa == 'y':
                continue
            else:
                print("You supplied a invalid response, quitting game.")
                break

Answer 1

这条线：

if hiLo == 'l' and system_number == 1 or system_number == 2 or system_number == 3:

是这样评估的：

if   (hiLo == 'l' and system_number == 1): # Enter block
elif system_number == 2:                   # Enter block
elif system_number == 3:                   # Enter block
else:                                      # Don't enter block

所以hiLo == 'l'部分（当前）只影响第一个system_number == 1测试。如果system_number是2或3，则无论hiLo的值是多少，代码都将进入块。你知道吗

这是因为or运算符比and运算符有一个higher precedence。你知道吗

所以你可能想要这样的东西：

if hiLo == 'l' and (system_number == 1 or system_number == 2 or system_number == 3):

或者

if hiLo == 'l' and system_number in [1,2,3]:

或者

if hiLo == 'l' and (1 <= and system_number <= 3):

Answer 2

更好的是，既然您已经定义了较高和较低的数字，您不妨使用它们，如下所示：

第39行：

if hiLo == 'l' and system_number in lower:

第49行：

if hiLo == 'h' and system_number in higher:

Answer 3

用括号括起来：

if (hiLo == 'l') and (system_number == 1 or system_number == 2 or system_number == 3)

但是你最好这样做：

if (hiLo == 'l') and (system_number in  [1,2, 3])