使用or和not运算符

Question

只是想知道是否有人可以帮助我。 我需要检查成员是否等于3个不同的字符串。 我尝试使用or ，但没有成功。 代码是：

list = ["a", "b", "c", "d"]

for member in list:
    if not member == "a" or not member == "b" or not  member == "c":
        print member 

我只需要打印"d" 。 我只需要得到"d" 。

Answer 1

你只需要一个单一in测试：

for member in list:
    if member not in ('a', 'b', 'c'):
        print member 

Answer 2

如果您希望代码正常工作，则只需将“或”替换为“和”。 尽管如此，罗希特·贾因（Rohit Jain）的答案还是表达同一件事的更好方法。