数字编码可用ASCII码、16进制、8进制、8421BCD码、5421BCD码，给出相互转换的程序。-Digital code can be ASCII, 16 hex, 8 decimal, 8421BCD code, 5421BCD code, given the conversion process.

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