該段落旨在包含空格和隨機標點符號，我通過執行 .replace 在 for 循環中刪除了它們。然后我通過 .split() 將段落放入一個列表中以獲得 ['the', 'title', 'etc']。然后我做了兩個函數 count words 來計算每個單詞，但我不想它計算每個單詞，所以我做了另一個函數來創建一個唯一的列表。但是，我需要創建一個 for 循環來打印出每個單詞以及它被說了多少次，輸出是這樣的The word The appears 2 times in the paragraph.The word titled appears 1 times in the paragraph.The word track appears 1 times in the paragraph.我也很難理解 for 循環的本質。我讀到我們應該只使用 for 循環進行計數，而 while 循環可以用于其他任何事情，但 while 循環也可以用于計數。 paragraph = """ The titled track “Heart Attack” does not interpret the feelings of being in love in a serious way, but with Chuu’s own adorable emoticon like ways. The music video has references to historical and fictional figures such as the artist Rene Magritte!!.... """for r in ((",", ""), ("!", ""), (".", ""), (" ", "")): paragraph = paragraph.replace(*r)paragraph_list = paragraph.split()def count_words(word, word_list): word_count = 0 for i in range(len(word_list)): if word_list[i] == word: word_count += 1 return word_countdef unique(word): result = [] for f in word: if f not in result: result.append(f) return resultunique_list = unique(paragraph_list)
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慕俠2389804
TA貢獻1719條經驗 獲得超6個贊
請注意，您的示例文本很簡單，但標點規則可能很復雜或未正確遵守。包含 2 個相鄰空格的文本是什么（是的，它不正確但很頻繁）？如果作者更習慣法語并在冒號或分號前后寫空格怎么辦？
我認為's構造需要特殊處理。怎么樣："""John has a bicycle. Mary says that her one is nicer that John's."""恕我直言，這個詞John在這里出現了兩次，而你的算法會看到 1John和 1 Johns。
此外，由于 Unicode 文本現在在 WEB 頁面上很常見，您應該準備好找到空格和標點符號的高代碼等效項：
“ U+201C LEFT DOUBLE QUOTATION MARK
” U+201D RIGHT DOUBLE QUOTATION MARK
’ U+2019 RIGHT SINGLE QUOTATION MARK
‘ U+2018 LEFT SINGLE QUOTATION MARK
U+00A0 NO-BREAK SPACE
此外，根據這個較舊的問題，刪除標點符號的最佳方法是translate. 鏈接問題使用 Python 2 語法，但在 Python 3 中您可以執行以下操作：
paragraph = paragraph.strip() # remove initial and terminal white spaces
paragraph = paragraph.translate(str.maketrans('“”’‘\xa0', '""\'\' ')) # fix high code punctuations
paragraph = re.replace("\w's\s", "", paragraph) # remove 's
paragraph = paragraph.translate(str.maketrans(None, None, string.punctuation) # remove punctuations
words = paragraph.split()
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