键盘程序。主要实现按一个键就在数码管上显示相应的数。本程序中，数码管是带地址的！

主要子程序是键盘扫描程序！

下面英文用工具译的！用的软件是keil-Keyboard procedures. The main achievement of the press of a button on the control in the digital display the corresponding number. This procedure, the digital control is intended to bring the address! The main subroutine is the keyboard scanning process! The following translation tools in English!