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51 lines
1.7 KiB
51 lines
1.7 KiB
# 引入停用词表和测试文件的路径
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from cppy.cp_util import stopwordfilepath, testfilepath
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# 准备停用词表
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with open(stopwordfilepath, encoding='utf-8') as f:
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stop_words = f.read().split(',')
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for letter in 'abcdefghijklmnopqrstuvwxyz':
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stop_words.append(letter)
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# 读文件，逐行扫描文本，发现词，确定不是停用词，计数
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word_freqs = []
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for line in open(testfilepath, encoding='utf-8'):
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start_char = None
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i = 0
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for c in line:
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if start_char is None:
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if c.isalnum():
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# 一个单词开始
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start_char = i
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else:
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if not c.isalnum():
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# 一个单词结束
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found = False
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word = line[start_char:i].lower()
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# 跳过停用词
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if word not in stop_words:
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pair_index = 0
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# 单词是否第一次出现
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for pair in word_freqs:
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if word == pair[0]:
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pair[1] += 1
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found = True
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break
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pair_index += 1
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if not found:
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word_freqs.append([word, 1])
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# 重置开始标记
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start_char = None
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i += 1
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# 使用冒泡排序对词频进行排序
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n = len(word_freqs)
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for i in range(n):
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for j in range(0, n - i - 1):
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if word_freqs[j][1] < word_freqs[j + 1][1]:
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word_freqs[j], word_freqs[j + 1] = word_freqs[j + 1], word_freqs[j]
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# 打印频率最高的前10个词
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for tf in word_freqs[:10]:
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print(tf[0], '-', tf[1])
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