c51 遥控器 万能遥控器 源码代码 unsigned char bdata SP1; unsigned char bdata SP2; unsigned char bdata SP3; unsigned char bdata SP4; unsigned char bdata SP5; unsigned char bdata SP6; unsigned char bdata SP7; unsigned char bdata SP8; unsigned char bdata FLAG; sbit ON=FLAG^0; sbit KeyDown=FLAG^1; /*