一个完整的数字始终程序，只要用户键入一个键，程序开始读取时间并计时，即在屏幕上显示一个类似电子表的台式时钟。-Has always been a complete digital process, as long as the user types a key, the program began to read the time and timing, that is displayed on the screen like a desktop e-table clock.