c#中重定向windows控制台程序的输出信息

using  System;
using  System.Windows.Forms;

namespace  WindowsApplication8
... {
    public partial class Form1 : Form
    ...{
        public Form1()
        ...{
            InitializeComponent();
        }

        delegate void dReadLine(string strLine);
        private void excuteCommand(string strFile, string args, dReadLine onReadLine)
        ...{
            System.Diagnostics.Process p = new System.Diagnostics.Process();
            p.StartInfo = new System.Diagnostics.ProcessStartInfo();
            p.StartInfo.FileName = strFile;
            p.StartInfo.Arguments = args;
            p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
            p.StartInfo.RedirectStandardOutput = true;
            p.StartInfo.UseShellExecute = false;
            p.StartInfo.CreateNoWindow = true;
            p.Start();
            System.IO.StreamReader reader = p.StandardOutput;//截取输出流
            string line = reader.ReadLine();//每次读取一行
            while (!reader.EndOfStream)
            ...{
                onReadLine(line);
                line = reader.ReadLine();
            }
            p.WaitForExit();
        }

        private void button1_Click(object sender, EventArgs e)
        ...{
            excuteCommand("ipconfig", "", new dReadLine(PrintMessage));
        }
        private void PrintMessage(string strLine)
        ...{
            this.textBox1.Text += strLine + " ";
        }
    }
}