主要的功能是批量处理把以知道的文件类型修改为其他的文件类型。-main function is to extend the batch processing of documents known to other types of amendments to the document type.

将UTF8编码转为GB，优点是命令行程序，方便其它程序调用，方便用批处理将大批量文件一次性转换-The UTF8 encoded into GB, the advantage is a command line program, easy to invoke other programs, easy to use batch files to large quantities of one-time conversion