取0-24点 事件
strSql.Append(" CreatedDate >=convert(varchar(19), '" + strWhere + "'+' 00:00:00', 121) ");
strSql.Append(" CreatedDate <=convert(varchar(19), '" + strWhere + "'+' 23:59:59', 121)) ");
strSql.Append(" CreatedDate <=convert(varchar(19), '" + strWhere + "'+' 23:59:59', 121)) ");