c# 用户名 密码 访问 局域网共享

        #region Ping 返回true则代表可以连接成功
        public bool Ping(string remoteHost)
        {
            bool Flag = false;
            Process proc = new Process();
            try
            {
                proc.StartInfo.FileName = "cmd.exe";
                proc.StartInfo.UseShellExecute = false;
                proc.StartInfo.RedirectStandardInput = true;
                proc.StartInfo.RedirectStandardOutput = true;
                proc.StartInfo.RedirectStandardError = true;
                proc.StartInfo.CreateNoWindow = true;
                proc.Start();
                string dosLine = @"ping -n 1 " + remoteHost;
                proc.StandardInput.WriteLine(dosLine);
                proc.StandardInput.WriteLine("exit");
                while (!proc.HasExited)
                {
                    proc.WaitForExit(500);
                }
                string pingResult = proc.StandardOutput.ReadToEnd().Replace("Request timed out", "无法访问目标主机");
                if (pingResult.IndexOf("无法访问目标主机") == -1)
                {
                    Flag = true;
                }
                proc.StandardOutput.Close();

            }
            catch (Exception ex)
            {
            }
            finally
            {
                proc.Close();
                proc.Dispose();
            }
            return Flag;
        }
        #endregion

　　

        #region Connect 连接局域网 返回true则代表可以连接成功
        public bool Connect(string remoteHost, string userName, string passWord)
        {
            bool Flag = false;
            Process proc = new Process();
            try
            {
                proc.StartInfo.FileName = "cmd.exe";
                proc.StartInfo.UseShellExecute = false;
                proc.StartInfo.RedirectStandardInput = true;
                proc.StartInfo.RedirectStandardOutput = true;
                proc.StartInfo.RedirectStandardError = true;
                proc.StartInfo.CreateNoWindow = true;
                proc.Start();
                proc.StandardInput.WriteLine("net use * /del /y");  //中断开所有连接
                string dosLine = @"net use \" + remoteHost + " " + passWord + " " + " /user:" + userName + ">NUL";
                proc.StandardInput.WriteLine(dosLine);
                proc.StandardInput.WriteLine("exit");
                while (!proc.HasExited)
                {
                    proc.WaitForExit(1000);
                }
                string errormsg = proc.StandardError.ReadToEnd();
                proc.StandardError.Close();
                if (String.IsNullOrEmpty(errormsg))
                {
                    Flag = true;
                }
            }
            catch (Exception ex)
            { }
            finally
            {
                proc.Close();
                proc.Dispose();
            }
            return Flag;
        }
        #endregion