程序运行首先提示输入中断服务的时间间隔T和中断服务次数N，正确输入后，回车，则每间隔指定的时间T会在屏幕上显示一些字符，显示N次后，则不再显示，如果N=0，则会无限显示下去，直到在键盘上按下指定的按键，才停止显示。停止显示后，按任意键程序结束运行。-The program run is first prompted to enter an interrupt service time interval T, N, and the interrupt service frequency and correctly entered after the transport, each specified time interval T may be displayed on the screen a number of characters, after the N times, is no longer displayed, if N = 0, it is unlimited down, stop showing until the specified key is pressed on the keyboard. Stop the display, press any key to program the end of the run.