本例通过多线程技术每100us重绘界面 在绘制界面时 根据时间绘制成表盘和指针的形状 同时 在表盘下方是数字表显示时间-That this example is in dial down part by the fact that multi-thread technology each 100 us draw an interface again while drawing the form becoming the dial and guiding principle according t

A Digital Timex Watch

请做一个数字钟表（显示消失、分钟、秒），系统初始时间为电脑时间，可允许用户修改时间（参考windows时间的修改）。-Please make a digital watch (display disappears, minutes, seconds), the system time of the initial time for the computer, which allows the user to modify the time (reference time windows modi

Start timing an event with the click of a Start Button. Take Elapsed Time readings with a click of a second button as often as you want. Timer continues timing the event until you click the Reset button. Elapsed times are given in days : hours : minu