用window api编写的有表盘的电子表，和windows xp自带的钟表类似，有时针，分针和秒针，有简单表盘，根据每秒的转动角度来计算指针每次出现的坐标，初始化时是调用的系统时间。三个指针颜色不同。-There are written using window api dial electronic watches, clocks and similar windows xp comes with hour, minute and second hands, a simple dial, according to the angle of rotation per second to calculate the coordinates of each occurrence of the pointer, initialized by calling the system time. Three pointer to a different color.