private void Btn_Rank_Click(object sender, EventArgs e) { ChangeExternThreeButtonForeColor(sender as Button); DownloadInfo di = new DownloadInfo(this); string[] aryStrCouponId = di.CouponTop(); MyMsgBox mb = new MyMsgBox(); if (aryStrCouponId.Length == 0) { mb.ShowMsg("排行榜暂时无数据!", 2); return; } LP_ctype[0] = FindCouponById(aryStrCouponId); curPage = 1; curType = 0; theCouponNum = 0; ShowCoupon(); }