form load 寫入代碼

 PRivate void InitTabControl()

        }

tabcontrol

 private void tabControl1_DrawItem(object sender, DrawItemEventArgs e)        {            string text = ((TabControl)sender).TabPages[e.Index].Text;            SolidBrush brush = new SolidBrush(Color.Black);            StringFormat sf = new StringFormat(StringFormatFlags.DirectionRightToLeft);            sf.LineAlignment = StringAlignment.Center;            sf.Alignment = StringAlignment.Center;            e.Graphics.DrawString(text, SystemInformation.MenuFont, brush, e.Bounds, sf);        }