说明：  单片机应用PS/2键盘的实例,本程序源码只供学习参考，不得应用于商业用途，如有需要请联系作者。 [注:AT89x51使用12M或11.0592M晶振,实测使用11.0592M] [Keil uV2 7.01编译运行通过 程序中没有做键盘数据的奇偶校验]
(SCM application PS/2 keyboard example, the learning process only reference source, not used for commercial purposes, if necessary please contact the author. [Note : AT89x51 use 12M or 11.0592M crystal, the measured use 11.0592M] [Keil uV2 7.01 compiler running through the procedure done keyboard data parity])