程序初始在屏幕左方有一个指针式钟面和数字时钟，时间与系统时间或用户设置的时间一致。分析实现带时针、分针和秒针的指针式时钟的显示及运行。-Initial program on the left of the screen has a pointer type dial and digital clock, time in accordance with the time of system or user Settings. Analysis of implementation with the