检查列表中的哪个元素包含我要搜索的字符串

Question

我有一个列表，我想查看字符串＆＃34; Monday＆＃34;是在它，但我想知道，如果它是什么列表的元素是什么？

    list1 = ["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"]
if "Monday" in list1:
    print("True")

Answer 1

list1 = ["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"]
if "Monday" in list1:
    print(list1.index("Monday"))

Answer 2

您可以尝试使用enumerate()功能：

for i, j in enumerate(["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"]):
    if j == 'Monday':
        print i

这将为您提供变量“星期一”的索引位置，在此实例中，项目列表中的任何位置 - 考虑到它可能列在多个位置。

Answer 3

如果我们正在搜索“b”：

[x for x,y in enumerate(["a","b","b","c","d","e","f","g"]) if "b" in y]

将考虑多个外观并将所有这些的索引作为列表

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