电子钟C语言程序：CPU为STC12C50S60@12M；显示部分为P1口高四位接74LS248，驱动四位红色共阴数码管（段码）P1口低四位接数码管负极（位码）；DS1302时钟芯片；-Clock C language program: CPU is STC12C50S60 @ 12M display high four part P1 port access 74LS248, drive four red common cathode LED (above code) P1 port acc