qd-asm
代码说明:
又一种抢答器的AT89S51程序, SW1 SW2 SW3 SW4 用数码管显示最先按下的按键 01 02 03 04 并点亮对应灯: D2 D3 D4 D5 显示2S后退出。 同时发出 “嘟”一声。(Yet another answering device AT89S51 procedures, SW1 SW2 SW3 SW4 with digital display by pressing the button the first 01 02 03 04 and light the corresponding lamp: D2 D3 D4 D5 Display 2S exit. Also issued a " beep" sound.)
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