解：
将打开的PIL图像保存到类似文件的对象即可解决此问题。
pic = cStringIO.StringIO()image_string = cStringIO.StringIO(base64.b64depre(request.POST['file']))image = Image.open(image_string)image.save(pic, image.format, quality = 100)pic.seek(0)return HttpResponse(pic, content_type='image/jpeg')
