private void InitializeComponent()
{
  // 
  // RealPlayWnd
  // 
  this.RealPlayWnd.MouseUp += new MouseEventHandler(this.RealPlayWnd_MouseUp);
  this.RealPlayWnd.MouseDown += new MouseEventHandler(this.RealPlayWnd_MouseDown);
  this.RealPlayWnd.MouseMove += new MouseEventHandler(this.RealPlayWnd_MouseMove);

}

int xPos;
int yPos;
bool MoveFlag;
  //在picturebox的鼠標(biāo)按下事件里,記錄三個變量.
  private void RealPlayWnd_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
  {
    MoveFlag = true;//已經(jīng)按下.
    xPos = e.X;//當(dāng)前x坐標(biāo).
    yPos = e.Y;//當(dāng)前y坐標(biāo).
  }

 //在picturebox的鼠標(biāo)按下事件里.
 private void RealPlayWnd_MouseUp(object sender, MouseEventArgs e)
 {
   MoveFlag = false; 
 }

 //在picturebox鼠標(biāo)移動
 private void RealPlayWnd_MouseMove(object sender, MouseEventArgs e)
 { 
   if (MoveFlag)
   {
     RealPlayWnd.Left += Convert.ToInt16(e.X - xPos);//設(shè)置x坐標(biāo).
     RealPlayWnd.Top += Convert.ToInt16(e.Y - yPos);//設(shè)置y坐標(biāo).
   }
}