对文件进行操作，对索引倒排表中的文件进行相应的操作-the documents operation, the inverted index table of the corresponding documents to operate

本系统实现了分词和倒排索引，分词采用正向最大匹配，-The system achieved a sub-word and the inverted index, the biggest being the use of sub-word match,

根据分词程序结果用倒排文件对词频进行统计，并输出索引-Segmentation results of the proceedings in accordance with the inverted file used to compile the statistics on the frequency and the output index