Question

我在c＃中创建了一个TCP服务器，它从客户端接收文件并将其保存在当前目录中。执行此操作的代码段如下：

       using (FileStream fStream = new FileStream(Path.GetFileName(cmdFileName), FileMode.Create))
            {
                fStream.Write(buffer, 0, buffer.Length);
                fStream.Flush();
                fStream.Close();
            }

        Console.WriteLine("File received and saved in " + Environment.CurrentDirectory);

其中cmdFileName是收到的文件名。

现在我创建了一个名为＆＃34; test＆＃34;的文件夹。使用以下代码在当前目录中：

            string root = Environment.CurrentDirectory;
            string folder = Path.Combine(root,"test");
            if (!Directory.Exists(folder)) Directory.CreateDirectory(folder);

我希望将收到的文件保留在＆＃34; test＆＃34;夹。我需要更改我之前代码段的以下行：

using (FileStream fStream = new FileStream(Path.GetFileName(cmdFileName), FileMode.Create))

但我必须做出哪些改变？

Answer 1

您正在使用Path.Combine获取新test目录的路径 - 您只需再次使用它来查找{{1}内cmdFileName文件的路径目录：

test

Answer 2

在此代码之后：

void setup() {
  // initialize digital pin 13 as an output.
  pinMode(13, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(13, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);              // wait for a second
  digitalWrite(13, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);              // wait for a second
}

添加string root = Environment.CurrentDirectory; string folder = Path.Combine(root,"test"); if (!Directory.Exists(folder)) Directory.CreateDirectory(folder);的另一种用法，因为您要将路径Path.Combine附加到文件folder：

cmdFileName

此外，您应该在string fullFilePath = Path.Combine(folder, Path.GetFileName(cmdFileName)); using (FileStream fStream = new FileStream(fullFilePath, FileMode.Create)) { ... } Console.WriteLine("File received and saved in " + fullFilePath);块内进行此操作，以便宣布仅在确实成功时才成功：

try

在c＃socket

2 个答案: