Python 将字符串的中英文分离的完整代码

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在进行文本分析、提取关键词时，新闻评论等文本通常是中英文及其他语言的混杂，若不加处理直接分析，结果往往差强人意。

 #  内存溢出  (jb51.cc) s = "China's Legend Holdings will split its several business arms to go public on stock markets,the group's presIDent Zhu linan saID on Tuesday.该集团总裁朱利安周二表示，中国联想控股将分拆其多个业务部门在股市上市。"result = "".join(i for i in s if ord(i) < 256)print(result)# End 内存溢出 jb51.cc

 

out:China's Legend Holdings will split its several business arms to go public on stock markets,the group's presIDent Zhu linan saID on Tuesday.

2、unicode编码识别

#  内存溢出  (jb51.cc) import res = "China's Legend Holdings will split its several business arms to go public on stock markets,the group's presIDent Zhu linan saID on Tuesday.该集团总裁朱利安周二表示，中国联想控股将分拆其多个业务部门在股市上市。"uncn = re.compile(r'[\u0061-\u007a,\u0020]')en = "".join(uncn.findall(s.lower()))print(en)# End 内存溢出 jb51.cc

 

out:chinas legend holdings will split its several business arms to go public on stock markets,the groups presIDent zhu linan saID on tuesday

中文的编码范围是：\u4e00-\u9fa5，相应的[^\u4e00-\u9fa5]可匹配非中文。
匹配英文时，需要将空格[\u0020]加入，不然单词之间没空格了。
  总结

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