agree with up .<br><br>uses Jpeg;<br><br>var<br> jpg :TJpegImage;<br> bmp :TBitmap;<br>begin<br> ....................<br> jpg :=TJpegImage.Create;<br> jpg.LoadfromFile('.......');<br> bmp :=TBitmap.Create;<br> bmp.Assign(jpg);<br> ...........................<br> bmp.Free;<br> jpg.Free;<br>end;<br><br>to wlyft:<br> 这不会耗什么资源的,仅仅是将jpg转化为bmp而已,当然文件是增大了.