中控指纹机开发包，包括VB、Delphi、C++、PB8等，内含驱动-In the control fingerprint development kit, including VB, Delphi, C++, PB8, etc., containing the drivers,

中控指纹考勤系统二次开发包，内含vc,delphi,c# 等示例程序，（包含接口文档）-Secondary control fingerprint attendance system development kit, containing vc, delphi, c#, etc. sample program (including the interface documentation)