说明：  高效率的gb2312和ucs2编码互转工具，自带码表，适合嵌入式开发和cmpp、smpp编程，且同时可在windows平台和unix平台编译
(efficient gb2312 UCS2 coding referrals and tools own code table, for embedded development and cmpp,- programming, but also in the windows platform and unix platform compiler)