public static void exec(int day_before)
{
DateTime now = DateTime.Now;
string tag = now.ToString("yyyyMMdd");
DateTime end = now.AddDays(day_before);
DateTime start = new DateTime();
string[] list = Constant.ANALYZE_TIME.Split('-');
BizApi.DeleteAnalyzeData(tag);
foreach (string i in list)
{
start = end.AddMonths(-int.Parse(i));
BizApi.InsertAnalyzeData(tag, start, end);
}
}