{动态添加导航} var Panl:Tpanel; MainPage,Subpage:TPageControl; TabSheet1: TTabSheet; ToolBar2: TToolBar; Splitter:TSplitter; begin {创建导航树开始} Panl:=Tpanel.Create(self); with Panl do begin Parent := mainForm; Left:= ; Top:= ; Width:= ; Height:= ; Align:= alL