有些单片机IO很少，比如MSP430G2，外接键盘和显示器很不现实。一个有效的办法是利用电脑的键盘和显示器。这个程序通过超级终端等上位机向单片机发送控制命令。-Some single-chip IO rarely, such as MSP430G2, external keyboard and monitor not realistic. An effective way is to use a computer keyboard an