һ:ļ˵:
1:md5_pay.aspx ֧ҳ.
2:md5_query.aspx ѯҳ
3:payresult.aspx ֧ʾҳ
4:queryresult.aspx ѯʾҳ
5:Md5Pay.cs ʵ

:ע.
1:Ϊ.netԶתURLеַ,web.configм.
  <globalization requestEncoding="gb2312" responseEncoding="gb2312" culture="zh-CN" fileEncoding="gb2312" />

2:עñ̻KEYʾ.

3:ȡַĵطûԵַ(ڷʱϳȫַ)ʵ,վĲ.
  ,ַƼʹIPַ.
  