用VC++的STL计算生成的IEEERTS-96的一年52周364天的每天24小时的负荷值的有名值，可用于计算电力系统的可靠性的分析-Calculated using VC++ the STL generated IEEERTS-96, 52 weeks a year a day, 364 days a famous 24-hour load value value can be used to calculate the reliability of the power system anal

删除过期文件，根据所选择的日期，可删除对应文件，比如1天，则删除从现在开始，24小时前的任何文件-Delete expired documents, according to the selected dates, you can delete the corresponding files, such as one day, then remove from now, 24 hours before any documents

51单片机时钟显示,显示从0秒到24小时再清零的过程-very good