摘要： 网上的都少了这两句bmp:=TBitmap.create; //先建立后才能用 jpg:= TJpegImage.create; ///////////////////////////////////////////////unit Unit1;interfaceuses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls,jpeg;type TForm1 = class(TForm) Button1: TButton; procedure Button1Click(Sender. 阅读全文