本人曾经学51时练习的一些程序及相应的Proteus仿真图，直接在KEIL里写，在仿真里就能实现，方便，使用，适合新手使用-I had to learn some of the program 51 during practice and the corresponding Proteus simulation map, write directly on the KEIL, in the simulation was able to achieve, easy to use, suitable