https://blog.csdn.net/grand_duke/article/details/123045155 

lsimage 引用至上篇文章

Image backBitmap = System.Drawing.Image.FromStream(ms);

创建一个图像对象,数据源为图片数据.

string path = Directory.GetCurrentDirectory() + @"\Information\";
                  if (!Directory.Exists(path))
                    {
                        Directory.CreateDirectory(path);
                    }

创建一个保存路径.