string strToday = DateTime.Now.ToString("yyyyMMdd");
string strYesterday = DateTime.Now.AddDays(-1).ToString("yyyyMMdd");
string strNow = DateTime.Now.ToString("yyyyMMddHHmmssfff");
string strToday = DateTime.Now.ToString("yyyyMMdd");
string strYesterday = DateTime.Now.AddDays(-1).ToString("yyyyMMdd");
string strNow = DateTime.Now.ToString("yyyyMMddHHmmssfff");