上传和下载

 

//上传：

用个FileUpload1控键

string sFileName;

sFileName = FileUpload1.FileName;

string sFilePath = Server.MapPath("File");

string strPath = System.IO.Path.Combine(sFilePath, FileUpload1.FileName);

FileUpload1.PostedFile.SaveAs(strPath);

//下载：

string filepath = Server.MapPath("File");

string filename = //下载文件名;

string path = filepath + filename;

Response.Clear();

Response.ContentType = "application/octet-stream";

Response.AddHeader("Content-Disposition", "attachment;FileName=" + HttpUtility.UrlEncode(filename, System.Text.Encoding.UTF8));

Response.WriteFile(path);

Response.End();

来源：https://www.cnblogs.com/gjahead/archive/2006/06/23/433908.html