说明：  51单片机实验，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
(The 51 single chip computer experiment, the 51 single chip microcomputer is the unified name for all the single chip computer compatible with the Intel 8031 instruction system. 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.)