本资料为基于单片机的AD按键的程序。能用单IO口实现多按键处理，实现了短按，长按和组合键等功能。本程序的编译器为CVAVR，程序可移植性好，能轻易的移植到其他带ADC的单片机上去。-This information is based on single-chip AD button procedure. Can achieve single-IO I deal with many keys, according to achieve short and long by a combination of keys and functions. This procedure for the compiler CVAVR, program portability, and can be easily transplanted to other microcontroller with ADC up.