本程序结合天体运动学计算立春具体时间，结果以北京时间表示，算法简单，科学可靠，误差小于20分钟。方便程序员们日历相关模块的开发，辅助测命大师们起八柱等。-The program combines object specific time kinematic calculation of the beginning of spring, the results in Beijing, said algorithm is simple, scientific and reliable, the e