C#运行DOS命令

                        Process p = new Process();
                        ProcessStartInfo pi = new ProcessStartInfo();
                        pi.FileName = "cmd.exe";
                        pi.UseShellExecute = false;
                        pi.RedirectStandardInput = true;
                        pi.RedirectStandardOutput = true;
                        pi.RedirectStandardError = false;
                        pi.CreateNoWindow = true;
                        p.StartInfo = pi;
                        string strOutput = null;
                        try
                        {
                            p.Start();
                            p.StandardInput.WriteLine(cmd); //写入要执行的命令 可以多条写入也可以复合命令写入
                            p.StandardInput.WriteLine("D:");
                            p.StandardInput.WriteLine("npm run build");
                            p.StandardInput.WriteLine("exit");
                            strOutput = p.StandardOutput.ReadToEnd();
                            p.WaitForExit();
                            p.Close();
                        }
                        catch (Exception e)
                        {
                              //异常处理
                        }