救命用dbimage怎样显示格式为.jpg的图片

1、在uses 中添加jpeg2、用query定位到需要显示的记录，3、然后
var tempsream:tstringstream;
    tempjpeg:tjpegimage;
try
  tempstream:=tstringstream.create('');
  tblobfield(query1.fieldbyname('image')).savetostream(tempstream);
  tempstream.position:=0;
  tempjpeg:=tjpegimage.create;
  tempjpeg.loadfromstream(tempstream);
  dbimage1.picture.bitmap.assign(tempjpeg);
finally
  tempstream.free;
  tempjpeg.free;
end;