code: static List<String> splitSentence(String document, String sentence_separator)
      {
          List<String> sentences = new ArrayList<String>();
          for (String line : document.split("[\r\n]"))
          {
              line = line.trim();
              if (line.length() == 0) continue;
              for (String sent : line.split(sentence_separator))		// [，,。:：“”？?！!；;]
              {
                  sent = sent.trim();
                  if (sent.length() == 0) continue;
                  sentences.add(sent);
              }
          }
  
          return sentences;
      }
docs: 将文章分割为句子
  
  @param document 待分割的文档
  @param sentence_separator 句子分隔符，正则表达式，如：   [。:？?！!；;]
  @return