Question

所以，这就是我得到的：

def getSentence():

  sentence = input("What is your sentence? ").upper()

  if sentence == "":
    print("You haven't entered a sentence. Please re-enter a sentence.")
    getSentence()
  elif sentence.isdigit():
    print("You have entered numbers. Please re-enter a sentence.")
    getSentence()
  else:
    import string
    for c in string.punctuation:
      sentence = sentence.replace(c,"")
      return sentence

def list(sentence):

  words = []
  for word in sentence.split():
    if not word in words:
      words.append(word)
    print(words)

def replace(words,sentence):
  position = []
  for word in sentence:
    if word == words[word]:
      position.append(i+1)
      print(position)

sentence = getSentence()
list = list(sentence)
replace = replace(words,sentence)

我只是设法达到这个目的，我的全部意图是接受句子，分成单词，将每个单词改成数字，例如。

words = ["Hello","world","world","said","hello"]

并使每个单词都有一个数字：

所以，让我们说“你好”的值为1，句子将是'1世界世界说1'

如果世界是2，那将是'1 2 2说1' 最后，如果“说”是3，那将是'1 2 2 1 2'

我们将非常感谢任何帮助，然后我将开发此代码，以便使用file.write()和file.read()等将句子等存储到文件中

感谢

Answer 1

这些单词变成数字的顺序是否重要？ Hello和hello两个字还是一个？为什么不能这样：

import string

sentence = input()  # user input here
sentence.translate(str.maketrans('', '', string.punctuation))
# strip out punctuation

replacements = {ch: str(idx) for idx, ch in enumerate(set(sentence.split()))}
# builds {"hello": 0, "world": 1, "said": 2} or etc

result = ' '.join(replacements.get(word, word) for word in sentence.split())
# join back with the replacements

Answer 2

如果您只想要每个单词所在的位置

positions = map(words.index,words)

此外，切勿为变量或函数使用内置函数名称。并且永远不要将变量与函数（replace = replace(...)）相同，函数是对象

编辑：在python 3中，您必须将地图返回的迭代器转换为列表

positions = list(map(words.index, words))

或使用理解列表

positions = [words.index(w) for w in words]

Answer 3

另一个想法（尽管不认为它比其他想法更好），使用词典：

dictionary = dict()
for word in words:
    if word not in dictionary:
        dictionary[word] = len(dictionary)+1

另外，在你的代码中，当你在“getSentence”中调用“getSentence”时，你应该返回它的返回值：

if sentence == "":
    print("You haven't entered a sentence. Please re-enter a sentence.")
    return getSentence()
elif sentence.isdigit():
    print("You have entered numbers. Please re-enter a sentence.")
    return getSentence()
else:
    ...

更换和存储

3 个答案: