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Bug474-Ren
Author | SHA1 | Date |
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任殷杰 | 35205d2066 | |
任殷杰 | ce2af6665d | |
任殷杰 | 3ca66d147c |
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@ -20,6 +20,6 @@ class WordFreq:
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if __name__ == '__main__':
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if __name__ == '__main__':
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f = WordFreq('BANANA; Banana, apple ORANGE Banana banana.')
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f = WordFreq('i\'m BANANA; Banana, apple ORANGE Bana-na/////,./;\'[]-=---\'/-banana.')
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print(f.get_freq())
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print(f.get_freq())
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@ -8,6 +8,7 @@ import string
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import operator
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import operator
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import os, sys # 引入模块sys,因为我要用里面的sys.argv列表中的信息来读取命令行参数。
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import os, sys # 引入模块sys,因为我要用里面的sys.argv列表中的信息来读取命令行参数。
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import pickle_idea
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import pickle_idea
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import re
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def freq(fruit):
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def freq(fruit):
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'''
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'''
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@ -39,17 +40,24 @@ def file2str(fname):#文件转字符
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def remove_punctuation(s): # 这里是s是形参 (parameter)。函数被调用时才给s赋值。
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def remove_punctuation(s): # 这里是s是形参 (parameter)。函数被调用时才给s赋值。
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special_characters = '_©~=+[]*&$%^@.,?!:;#()"“”—‘’' # 把里面的字符都去掉
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'''special_characters = '_©~=+[]*&$%^@.,?!:;#()"“”—‘’' #把里面的字符都去掉
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for c in special_characters:
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for c in special_characters:
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s = s.replace(c, ' ') # 防止出现把 apple,apple 移掉逗号后变成 appleapple 情况
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s = s.replace(c, ' ') # 防止出现把 apple,apple 移掉逗号后变成 appleapple 情况
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s = s.replace('--', ' ')
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s = s.replace('--', ' ')'''
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cop = re.compile("[^a-z^A-Z^\\']")#通过正则表达式保留英文字符和'特殊字符
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s=cop.sub(' ' , s)
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s = s.strip() # 去除前后的空格
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s = s.strip() # 去除前后的空格
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#s=keep_need_punctuation(s,'-')
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s=keep_need_punctuation(s,'\'')
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return s
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if '\'' in s:
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def keep_need_punctuation(s,need):#用于保留特定的字符
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if need in s:
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n = len(s)
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n = len(s)
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t = '' # 用来收集我需要保留的字符
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t = '' # 用来收集我需要保留的字符
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for i in range(n): # 只有单引号前后都有英文字符,才保留
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for i in range(n): # 只有单引号前后都有英文字符,才保留
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if s[i] == '\'':
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if s[i] == need:
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i_is_ok = i - 1 >= 0 and i + 1 < n
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i_is_ok = i - 1 >= 0 and i + 1 < n
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if i_is_ok and s[i - 1] in string.ascii_letters and s[i + 1] in string.ascii_letters:
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if i_is_ok and s[i - 1] in string.ascii_letters and s[i + 1] in string.ascii_letters:
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t += s[i]
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t += s[i]
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@ -59,7 +67,6 @@ def remove_punctuation(s): # 这里是s是形参 (parameter)。函数被调用
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else:
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else:
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return s
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return s
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def sort_in_descending_order(lst):# 单词按频率降序排列
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def sort_in_descending_order(lst):# 单词按频率降序排列
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lst2 = sorted(lst, reverse=True, key=lambda x: (x[1], x[0]))
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lst2 = sorted(lst, reverse=True, key=lambda x: (x[1], x[0]))
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return lst2
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return lst2
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