用于加密/解密的代码，以ATL形式提供... 软件类别：VC源代码 运行环境：Win9x/NT/2000/XP/2003/-for encryption / decryption code to form ... ATL software categories : VC source runtime environment : Win9x/NT/2000/XP/2003 /

对文件进行加密和解密操作，包含操作VC源代码和实验指导。-right document encryption and decryption operations, including operations VC source code and experimental guidance.