我做了很多的研究，发现本文中的ESRI公司的官方网站： 的http://webhelp.esri.com/arcpad/8.0/referenceguide/index.htm#locales/task_$c$c.htm

I did a lot of research and found this article in Esri's official website: http://webhelp.esri.com/arcpad/8.0/referenceguide/index.htm#locales/task_code.htm

这真的帮助我从语言ID转换为code页面;我这个问题是固定的。希望它可以帮助别人。

It really helps for me to convert from language id to code page; I this issue is fixed. Hope it helps others.