我如何创建一个程序，让用户输入一个句子，然后将该句子放入列表中，并将每个单词转换为单词的位置

if not True :始终是，False并且您需要“缩小”它，因为它使用了错误的间距，因此下面的打印语句也是如此。

因此if not True :永远不会执行以下操作：

print("Sorry this word is not in the sentence ")

您可能希望将其更改为类似的内容，if not works:但是您没有works = False在任何地方定义，但是您确实定义了，correct = False所以也许您在此处混淆了变量的名称。

因此，您的代码应如下所示：

sentence  = []
sentence = input("Please enter a sentence")                        #asks the user to enter a sentence
for i in range(10):                                                #number of words to be searched for
    search = input("please enter a word to be searched for: ")     #asks for a word to be searched for
    letters = sentence.split(' ')#splits the sentence
    correct = False
    for (i, letters) in enumerate(letters):
        if (letters == search):
            print ("your word has been found in position(s): ")    #prints the position of the words
            print (i)
            correct = True #the word has been found
    if not correct :
        print("Sorry this word is not in the sentence ")#prints the word cannot be found**

这应该起作用，尽管可能需要进一步清理，例如：为什么sentence = []在下一行中将字符串作为输入来执行此操作呢？点击此处查看代码评论

HTH。