Question

listEx = [ cat *(select: "Brown")* ,  dog ,  turtle ,  apple ]
listEx2 = [ hampter ,  bird ,  monkey ,  banana ,  cat ]

for j in listEx2:
    for i in listEx:
        if j in i:
            print listEx.index(j)

What I am trying to accomplish is search the items in listEx2 in listEx. If the item from listEx2 is found in listEx, I would like to know how to print the index value of the item found from listEX2 in listEx. Thanks!

Answer 1

仅限使用<代码>

listEx = [ cat *(select: "Brown")* ,  dog ,  turtle ,  apple ]
listEx2 = [ hampter ,  bird ,  monkey ,  banana ,  cat ]

for j in listEx2:
    for pos, i in enumerate(listEx):
        if j in i:
            print j, "found in", i, "at position", pos, "of listEx"

页: 1

cat found in cat *(select: "Brown")* at position 0 of listEx

Answer 2

您的问题是,您在最后一行中写了j而不是i:

for j in listEx2:
    for i in listEx:
        if j in i:
            print listEx.index(i)
#                              ^ here

However, a better approach is to use enumerate:

for item2 in listEx2:
    for i, item in enumerate(listEx):
        if item2 in item:
            print i

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