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36 lines
958 B
36 lines
958 B
from cppy.cp_util import *
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from dataclasses import dataclass
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from collections import Counter
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import re
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@dataclass
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class WordFrequency:
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text: str
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stop_words: set = None
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def __post_init__(self):
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# 如果未提供停用词表
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if self.stop_words is None:
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self.stop_words = get_stopwords()
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def tokenize(self):
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# 分词并去除停用词
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words = re.findall(r'\b\w+\b', self.text.lower())
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filtered_words = [word for word in words if word not in self.stop_words and len(word)>2]
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return filtered_words
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def get_top_n(self, n=10):
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# 计算词频
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word_freqs = Counter(self.tokenize())
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return word_freqs.most_common(n)
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# 使用示例
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if __name__ == '__main__':
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# 创建WordFrequency实例
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text = read_file()
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word_freq = WordFrequency( text )
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# 获取并打印词频
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top_words = word_freq.get_top_n()
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print_word_freqs(top_words) |