摘要：
1.protected void ddlYearMonth_SelectedIndexChanged(object sender, EventArgs e) { if (ddlYearMonth.SelectedValue.Equals("1")) { ddlPeriod.Items.Clear(); ddlYearMonth.SelectedValue = "1"; if (Month == 12) { Year = DateTime.Now.AddYears(1).Year; Month = DateTime.Now.AddMonths(1).Mon 阅读全文
