学步园

首先需创建IIS虚拟目录(Upload)并给虚拟目录及实目录均增加匿名访问权限，否则会报403错误

　　　　　//服务器路径　　　　　　

        　　string Uri = "http://127.0.0.1/Upload/";

　　　　　//文件路径　　　　　　
       　　 string fileName = "mysales.txt";

　　　　// 得到文件名，文件扩展名字，服务器路径
            Uri = Uri + fileName;
            // 创建WebClient实例
            WebClient myWebClient = new WebClient();

           //访问权限设置　　　　　　
            myWebClient.Credentials = CredentialCache.DefaultCredentials;

            // 要上传的文件
            FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
            BinaryReader br = new BinaryReader(fs);
            try
            {
                byte[] postArray = br.ReadBytes((int)fs.Length);
                Stream postStream = myWebClient.OpenWrite(Uri, "PUT");
                if (postStream.CanWrite)
                {
                    postStream.Write(postArray, 0, postArray.Length);
                    label1.Text = fileName + "上传成功！";
                }
                else
                {
                    label1.Text = "文件目前不可写！";
                }
                postStream.Close();
            }
            catch (WebException errMsg)
            {
                label1.Text = "上传失败：" + errMsg.Message;
            }