一个简易的数字钟，能显示小时、分和秒，是一台按秒计数并显示的计时器，其中秒和分为60进制，小时为24进制计数。-A simple digital clock showing the hours, minutes and seconds, is one count per second and displays the timer, which is divided into 60 seconds, and decimal, hexadecimal count for 24 hours.