4.py

# text = 妳讀進來的字串

# Process the text
words = text.lower().split()
word_counts = {}
character_counts = {char: 0 for char in "abcdefghijklmnopqrstuvwxyz0123456789"}

for word in words:
    # Remove punctuation from words
    cleaned_word = "".join([char for char in word if char.isalnum()])
    if cleaned_word:
        word_counts[cleaned_word] = word_counts.get(cleaned_word, 0) + 1
        for char in cleaned_word:
            if char in character_counts:
                character_counts[char] += 1

# Total number of words
total_words = sum(word_counts.values())

# Total number of word's type
total_word_types = len(word_counts)

# The first three words that most frequently appear in the article and their number
most_frequent_words = sorted(word_counts.items(), key=lambda item: item[1], reverse=True)[:3]

# First three words that only appear once, in lexical order
words_appear_once = sorted([word for word, count in word_counts.items() if count == 1])[:3]

total_words, total_word_types, most_frequent_words, words_appear_once, sorted(character_counts.items())