vs

 //窗体标题居中

Graphics g = this.CreateGraphics();

                Double startingPoint = (this.Width / 2) - (g.MeasureString(this.Text.Trim(), this.Font).Width / 2);

                Double ws = g.MeasureString("*", this.Font).Width;

                String tmp = " ";

                Double tw = 0;

 

                while ((tw + ws) < startingPoint)

                {

                    tmp += "1 ";

                    tw += ws;

                }

                this.Text = tmp.Replace("1", " ") + this.Text.Trim();