简单的密码保险箱程序，汇编编写，容易阅读。-Simple password safe procedures, to prepare a compilation, easy to read.

在酒店的客房控制系统中，需要用弱电控制强电，此程序就是在stc89c51的基础上编制的。-In the hotel room control system, it is necessary to use the weak control the strong power, the program is on the basis of stc89c51 prepared.