初始化控件panel大小和相对父容器居中
/// <summary>
/// 初始化界面大小
/// </summary>
protected void InitForm()
{
int winwith = Screen.PrimaryScreen.Bounds.Width;//获取显示器宽像素
int winheight = Screen.PrimaryScreen.Bounds.Height;//获取显示器高像素
this.panelPageMain.Width = winwith - 100;//减去固定模块的宽
this.panelPageMain.Height = winheight - 200;//减去固定模块的高
//this.panelPageMain.BackColor = Color.Red;
Point p = new Point(50, 25);//根据实际情况自行调整
this.panelPageMain.Location = p;
}