此代码如何在给定位置写入一个空文件？没有错误讯息。
// upload file
WebRequest upload = WebRequest.Create(ftp + path + "/" + file);
upload.Method = WebRequestMethods.Ftp.UploadFile;
upload.Credentials = new NetworkCredential(username, password);
String filePath = HttpContext.Current.Server.MapPath("~/temp/" + file); // path to file to upload
Stream myReadStream = new FileStream(filePath, FileMode.Create); // stream that can read binary data
BinaryWriter myStreamWriter = new BinaryWriter(upload.GetRequestStream()); // writer that can write the binary data to the FTP server
while (myReadStream.ReadByte() != -1)
{
myStreamWriter.Write(myReadStream.ReadByte());
}
myStreamWriter.Close();
myReadStream.Close();
删除while循环会创建一个大小为4byte且损坏的文件，所以我想我无法进入while循环。
您应该upload.GetResponse()在myStreamWriter关闭后调用。
PS：在您每两次读取一次写入一次的同时，您真的要这样做吗？
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