I don't know where I am going wrong, help me! please please please please

      for (i = v3; i < (v3 + v4); i++)
      {
         v1 = i % cDR_SPLIT_DAY;
         v2 = (i - v1) / cDR_SPLIT_DAY;
         v5 = i - v3 + 1;
         //
         if (SelectedDay == v5)
         {
            CustomFont.Draw(CustomFont.FontNormal, x + 15 + sW * v1, y + 52 + v2 * sH, 0xffffffff, 0x00000050, sW - 2, sH - 2, 3, " ");
         }
         if (SelectedDay == v5 && State[v5 - 1] == 0) //选择
         {
            RenderBitmap(531020, x + 8 + sW * v1 + (sW - 16) / 2, y + 50 + v2 * sH, 45, 45, 0.0, 0.0, 1.0, 1.0, 1, 1, 0.0);
         }
         else if (IsWorkZone(x + 15 + sW * v1, y + 52 + v2 * sH, sW - 2, sH - 2, true))
         {
            RenderBitmap(531020, x + 8 + sW * v1 + (sW - 16) / 2, y + 50 + v2 * sH, 45, 45, 0.0, 0.0, 1.0, 1.0, 1, 1, 0.0);
            if (pIsKeyRelease(VK_LBUTTON))
            {
               SelectedDay = v5;
               if (State[v5 - 1] == 0)
               {
                  this->SendRequest(0x01, SelectedDay);
                  this->ClearDayGift();
               }
            }
         }
         else if (State[v5 - 1] == 0) //
         {
            RenderBitmap(531020, x + 8 + sW * v1 + (sW - 16) / 2, y + 50 + v2 * sH, 45, 45, 0.0, 0.0, 1.0, 1.0, 1, 1, 0.0);
         }
         else
         {
            RenderBitmap(531021, x + 8 + sW * v1 + (sW - 16) / 2, y + 50 + v2 * sH, 45, 45, 0.0, 0.0, 1.0, 1.0, 1, 1, 0.0);
         }
         CustomFont.Draw(CustomFont.FontNormal, x + 15 + sW * v1, y + 52 + v2 * sH + sH - 13, 0xffffffff, (v5) != today.tm_mday ? 0x00000050 : 0x00ff007f, sW - 2, 12, 3, "%d", v5);
      }

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