说明：  此程序解决的问题 较好的, 并适应短字符串的中文分词算法 根据词库 发现以换行符分隔的众多标题中的 top N 关键字并以此更
(This program solves the problem better, and adapts the short string Chinese word segmentation algorithm to discover the top N keyword in the numerous header separated by the newline character according to the lexicon, and so on.)