python循环不能正常工作

Question

     `difficulty = ""
     
      while difficulty != "e", difficulty != "m", difficulty != "h":
        difficulty = input("Select your difficulty: [e]asy, [m]edium, [h]ard: ").lower()`

这是我的绞刑游戏的片段。当我输入任何有效的困难(“e”、"m“和"h")时，它就会继续打印困难。有什么解决办法吗？

Answer 1

@Samuel这里是您正在寻找的正确代码：

difficulty = ""

while (difficulty != "e") and (difficulty != "m") and (difficulty != "h"):
    difficulty = input(
        "Select your difficulty: [e]asy, [m]edium, [h]ard: ").lower()
    print(difficulty != "e" or difficulty != "m" or difficulty != "h")
print("Loop over.")

用and替换逗号，因为只有在没有任何条件返回False的情况下，您才想进入while循环，这只有在and运算符中才有可能。

这个解决方案对你有用吗？