曾经做的一个小游戏机，用STC15单片机编程在12864上随机显示个位及双位计算题，用摇杆选择答案，最后记录分数，用单片机自带RAM记录上一轮游戏分数及时间，关机再开仍能查看。不过做的不算很好就是了，应该说很不好吧(Now, with increasing frequency of use of the calculator, compute power is declining, increased computing power without delay. Mental arithmeti