说明：  程序描述: * * 1.开始运行时,LCD两行显示TJU EIE07 072699 * * * * 2.等待键盘按键，有键按下时在LCD第2排最左边显示相应键号 * *目的： 键盘查询、键盘中断、键值识别、键盘编码 * * 点阵字符型液晶显示(LCD)编程 *
(Procedure Description:** 1. Started running, LCD two-line display TJU EIE07 072699**** 2. Wait for the keyboard keys, there are key is pressed the first two rows at the left-most LCD displays the corresponding number keys** Purpose: Keyboard Query , keyboard interrupt, identification keys, keyboard character encoding** matrix liquid crystal display (LCD) program*)