由c51编译的Proteus仿真的计算器，很实用的小程序，由mcs8951、74LS373、6264组成，很好用的程序！-Proteus compiled by c51 calculator simulation, it is a small utility program, from mcs8951, 74LS373, 6264 of the procedures used in very good!

基于c51单片机的74ls373芯片无限拓展功能的源代码，（学院里写的）-Based on 74 c51 ls373 chip infinitely function source code, written in the (college)