74LS164级联数码管，包含程序和仿真，静态显示。-74LS164 cascade digital control, including procedures and simulation, and static display.

一个简单的74LS164芯片外加发光二极管的程序，是用于了解164芯片的好方法，外加仿真。-A simple program of the 74LS164 chip plus light-emitting diode, is a good way for understanding the 164 chip, plus simulation.