锁定键盘的程序，演示了9x和2k平台上应用程序从三级切换到零级，并执行键盘端口i/o,还演示了直接从dll中调用函数的代码。关键部分采用嵌入汇编，演示了一些编程技巧。-keyboard lock procedures, and demonstrated the 2k 9x platform application switch from three to zero level and the implementation of keyboard i/o, also demonstrated a