用每个单词的位置替换列表中的单词

Question

Sentence = input("type in sentence:").split()

The above stores the individual words in the input into a list. But now how do I replace each word in Sentence with the position of that word?

Answer 1

Map the string to its index using the map and index function.

Sentence = str(input("Type in the sentence here:")).split(" ")
indexed_sentence = list(map(lambda x: Sentence.index(x), Sentence))

You may also do:

indexed_sentence = [Sentence.index(x) for x in Sentence]

or

indexed_sentence = []
for x in Sentence:
    indexed_sentence.append(Sentence.index(x))

or

indexed_sentence = []
for x in Sentence:
    for count in range(len(Sentence)):
        if x == Sentence[count]:
            indexed_sentence.append(count + 1)
            break

Answer 2

只需这样做：

Sentence = [x for x in range(len(Sentence))]