System.Diagnostics.Process pro = new System.Diagnostics.Process();

 pro.StartInfo.FileName = "cmd.exe";

 pro.StartInfo.UseShellExecute = false;

 pro.StartInfo.RedirectStandardInput = true;

 pro.StartInfo.RedirectStandardOutput = true;

 pro.StartInfo.CreateNoWindow = true;

 pro.Start();

 //pro.StandardInput.WriteLine("net use \\\\202.149.225.121\\ipc$ \"AISchina_Admin\" /user:\"administrator\"");

 pro.StandardInput.WriteLine("cd D:\\程序\\5千png");

 pro.StandardInput.WriteLine("dir *.*");

StreamReader reader = pro.StandardOutput;

  // 截取输出流 pro.StandardInput.WriteLine("exit");

string line = reader.ReadLine();

// 每次读一行 while (!reader.EndOfStream)  // 不为空则读取 {    textBox2.AppendText(line + Environment.NewLine);

  // Environment .NewLine 换行    line = reader.ReadLine();

 }pro.WaitForExit();

 pro.Close();