分为数字时钟和桌面时钟，可以手动设置闹铃以及时钟的显示界面-Into digital clock and desktop clock, you can manually set the alarm and clock display interface

这是一个基于C++的时钟程序，包含时钟的绘制，时钟时间的显示，及闹铃的设置，时间的校准-This is based on C++ clock procedures, calibration incorporating clock drawing, time clock display and alarm settings, time