findUniqueWords가 정렬 된 목록을 생성하는지 확인할 수있었습니다. 그러나 목록을 반환하지 않습니다. 왜? def findUniqueWords(theList): newList = [] words = [] # Read a line at a time for item in theList: # Remove any punctuation from the line cleaned = cleanUp(item) # Split the line into separate words words = cleaned.split() # Evaluate each word for word in words: # Count each unique word if word not in newList: newList.append(word)..