用WebClient上传文件时，提示远程服务器返回错误：（501）未实现

[tou]

这是什么原因？？？
代码如下：

Dim myWebClient As System.Net.WebClient = New System.Net.WebClient()
myWebClient.Credentials = System.Net.CredentialCache.DefaultCredentials
Dim uriString As String = "http://192.168.1.9/test/ftp/ddd.jpg"
myWebClient.UploadFile(uriString, "PUT", "d:\ddd.jpg")
MsgBox("OK")

[tou]

我顶上去

[Snrmnm_sx]

可能有防火墙吧！

[孟子E章]

http://blog.joycode.com/dotey/archive/2005/04/17/49153.aspx

[tou]

我是菜鸟，请高手帮我把这段程序翻译成VB
String uriString = "http://localhost/uploadFile.aspx";

// 创建一个新的 WebClient 实例.
WebClient myWebClient = new WebClient();

string fileName = @"C:\upload.txt";

// 直接上传，并获取返回的二进制数据.
byte[] responseArray = myWebClient.UploadFile(uriString,"POST",fileName);

[tou]

特别是这句“string fileName = @"C:\upload.txt";”