51单片机示例程序，51单片机是对所有兼容Intel 8031指令系统的单片机的统称。该系列单片机的始祖是Intel的8004单片机，后来随着Flash rom技术的发展，8004单片机取得了长足的进展，成为应用最广泛的8位单片机之一(51 singlechip sample program, 51 single chip computer is all compatible with the Intel 8031 instruction system of the single chip. The originals of the series MCU are the 8004 microcontroller of Intel. Later, with the development of Flash ROM technology, the 8004 single chip microcomputer has made great progress, and has become one of the 8 most widely used single chip computers.)