C# Graphics.DrawLine 畫虛線

private void MainForm_Paint(object sender, System.Windows.Forms.PaintEventArgs e)

{

//點的大小,　值一樣則是畫點

float[] BlueValues = {5, 15 20,25s};

//顏色及畫筆大小設置

Pen BluekPen = new Pen(Color.Blue, 1);

//指定設定值

BluekPen.DashPattern = dashValues;

//畫一條豎線

e.Graphics.DrawLine(BluekPen, new Point(20, 50), new Point(20, 150));

 }