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			@ -39,7 +39,7 @@ 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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    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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        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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