c#调用本地命令并截取Output

demo1:

/// <summary>
        /// 
        /// </summary>
        /// <param name="str"></param>
        /// <param name="append">是否是追加</param>
        private void ShowOutput(string str,bool append) {
            if (this.txtOutput.InvokeRequired)
            {
                this.txtOutput.Invoke(new MethodInvoker(() => {
                    if (append)
                    {
                        this.txtOutput.AppendText(str);
                        this.txtOutput.AppendText(System.Environment.NewLine);
                    }
                    else
                    {
                        this.txtOutput.Clear();
                    }
                    
                }));
            }
            else
            {
                if (append)
                {
                    this.txtOutput.AppendText(str);
                    this.txtOutput.AppendText(System.Environment.NewLine);
                }
                else
                {
                    this.txtOutput.Clear();
                }
            }
        }

        



        private void btnRun_Click(object sender, EventArgs e)
        {

            Thread thread = new Thread(() => {

                ShowOutput("",false);
                //this.txtOutput.Clear();
                ProcessStartInfo psi = new ProcessStartInfo("Ping.exe");//设置运行的命令行文件问ping.exe文件，这个文件系统会自己找到
                //如果是其它exe文件，则有可能需要指定详细路径，如运行winRar.exe
                psi.Arguments = this.txtMachine.Text;//设置命令参数
                psi.CreateNoWindow = true;//不显示dos命令行窗口
                psi.RedirectStandardOutput = true;//
                psi.RedirectStandardInput = true;//
                psi.UseShellExecute = false;//是否指定操作系统外壳进程启动程序

                Process p = Process.Start(psi);
                StreamReader reader = p.StandardOutput;//截取输出流
                string line = reader.ReadLine();//每次读取一行
                while (!reader.EndOfStream)
                {
                    ;
                    ShowOutput(line,true);
                    line = reader.ReadLine();
                }
                p.WaitForExit();//等待程序执行完退出进程
                p.Close();//关闭进程
                reader.Close();//关闭流
            
            });

            thread.IsBackground = true;
            thread.Start();

        }

        private void Form1_Load(object sender, EventArgs e)
        {
            this.txtMachine.Text = "127.0.0.1";
        }

demo2:

/// <summary>
        /// appoint exe
        /// </summary>
        /// <param name="exeStr"></param>
        /// <param name="fileStr"></param>
        public void OpenFile(string exeStr,string fileStr) { 
            //ProcessStartInfo
            ProcessStartInfo psi;
            if (String.IsNullOrEmpty(exeStr))
            {
                psi = new ProcessStartInfo();
            }
            else
            {
                psi = new ProcessStartInfo(exeStr);//应用程序或文档名
            }
           
            psi.Arguments = fileStr;

            Process process = new Process();
            process.StartInfo = psi;
            process.Start();

        }


        public void OpenFile(string fileStr)
        {
            OpenFile(null, fileStr);
        }

demo3:

public static void PintTest()
        {
            //Allows an application to determine whether a remote computer is accessible over the network.
            Ping pingSender = new Ping();

            // Create a buffer of 32 bytes of data to be transmitted. 
            string data = "sendMsg";
            byte[] buffer = Encoding.ASCII.GetBytes(data);

            // Wait 10 seconds for a reply. 
            int timeout = 10000;

            // Set options for transmission: 
            // The data can go through 64 gateways or routers 
            // before it is destroyed, and the data packet 
            // cannot be fragmented.
            PingOptions options = new PingOptions(64, true);

            // Send the request.
            PingReply reply = pingSender.Send("www.baidu.com", timeout, buffer, options);

            if (reply.Status == IPStatus.Success)
            {
                Console.WriteLine("Address: {0}", reply.Address.ToString());
                Console.WriteLine("RoundTrip time: {0}", reply.RoundtripTime);
                Console.WriteLine("Time to live: {0}", reply.Options.Ttl);
                Console.WriteLine("Don't fragment: {0}", reply.Options.DontFragment);
                Console.WriteLine("Buffer size: {0}", reply.Buffer.Length);
                //A Byte array containing the data received in an ICMP echo reply message, or an empty array, if no reply was received.
                Console.WriteLine("Received in an ICMP echo reply message: {0}", Encoding.Default.GetString(reply.Buffer));
            }
            else