使用51和数码管做的一个计数器，虽然网上很多，但不能满足实际应用，我做的这个已经使用了一段时间，很稳定，你要是想移植到其他程序里，也可以使用（内含仿真图，）-The use of 51 and digital control to do a counter, even though many online, but you can not meet the practical application, I do have to use this for some time, it is stable, if you would like to transplant to other programs, can also be used (including simulation of Figure ,)