在c#程序中，有时会用到调用cmd命令完成一些功能，于是在网上查到了如下方法，实现了
c#执行DOS命令，并返回结果。

        //dosCommand Dos命令语句

        public string Execute(string dosCommand)

        {

            return Execute(dosCommand, 10);

        }

        /// <summary>

        /// 执行DOS命令，返回DOS命令的输出

        /// </summary>

        /// <param name="dosCommand">dos命令</param>

        /// <param name="milliseconds">等待命令执行的时间（单位：毫秒），

        /// 如果设定为0，则无限等待</param>

        /// <returns>返回DOS命令的输出</returns>

        public static string Execute(string command, int seconds)

        {

            string output = ""; //输出字符串

            if (command != null && !command.Equals(""))

            {

                Process process = new Process();//创建进程对象

                ProcessStartInfo startInfo = new ProcessStartInfo();

                startInfo.FileName = "cmd.exe";//设定需要执行的命令

                startInfo.Arguments = "/C " + command;//“/C”表示执行完命令后马上退出

                startInfo.UseShellExecute = false;//不使用系统外壳程序启动

                startInfo.RedirectStandardInput = false;//不重定向输入

                startInfo.RedirectStandardOutput = true; //重定向输出

                startInfo.CreateNoWindow = true;//不创建窗口

                process.StartInfo = startInfo;

                try

                {

                    if (process.Start())//开始进程

                    {

                        if (seconds == 0)

                        {

                            process.WaitForExit();//这里无限等待进程结束

                        }

                        else

                        {

                            process.WaitForExit(seconds); //等待进程结束，等待时间为指定的毫秒

                        }

                        output = process.StandardOutput.ReadToEnd();//读取进程的输出

                    }

                }

                catch

                {

                }

                finally

                {

                    if (process != null)

                        process.Close();

                }

            }

            return output;

        }