C# 压缩打包文件下载

    public class MyNameTransfom : ICSharpCode.SharpZipLib.Core.INameTransform
    {

        #region INameTransform 成员

        public string TransformDirectory(string name)
        {
            return null;
        }

        public string TransformFile(string name)
        {
            return Path.GetFileName(name);
        }

        #endregion
    }

    public partial class Default1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            ZipFileByCode();
        }

        /// <summary>
        /// 压缩打包文件
        /// </summary>
        public void ZipFileByCode()
        {
            MemoryStream ms = new MemoryStream();
            byte[] buffer = null;

            using (ZipFile file = ZipFile.Create(ms))
            {
                file.BeginUpdate();
                file.NameTransform = new MyNameTransfom();//通过这个名称格式化器，可以将里面的文件名进行一些处理。默认情况下，会自动根据文件的路径在zip中创建有关的文件夹。

                file.Add(Server.MapPath("/Content/images/img01.jpg"));
                file.Add(Server.MapPath("/Content/images/img02.jpg"));
                file.CommitUpdate();

                buffer = new byte[ms.Length];
                ms.Position = 0;
                ms.Read(buffer, 0, buffer.Length);
            }
            Response.AddHeader("content-disposition", "attachment;filename=test.zip");
            Response.BinaryWrite(buffer);
            Response.Flush();
            Response.End();
        }
    }