异步获取CMD命令行输出内容

当控制台命令使用process.Start(); 后可以直接显示输出内容，当然它是异步显示的不用等程序结束。代码如下:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;

namespace testApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            using (Process process = new System.Diagnostics.Process())  
            { 
                process.StartInfo.FileName = "ping"; 
                process.StartInfo.Arguments = "127.0.0.1 -t";
                process.StartInfo.UseShellExecute = false;
                process.StartInfo.CreateNoWindow = true;  
                process.StartInfo.RedirectStandardOutput = true; 
                
                process.Start(); 
                process.BeginOutputReadLine();  
                process.OutputDataReceived += new DataReceivedEventHandler(process_OutputDataReceived);  
            }  
        }

        private void process_OutputDataReceived(object sender, DataReceivedEventArgs e) 
        {
            if (!string.IsNullOrEmpty(e.Data))
                this.AppendText(e.Data + Environment.NewLine);   
        }
        public delegate void AppendTextCallback(string text);  
        
        public void AppendText(string text)  
        { 
            if (this.textBox1.InvokeRequired)  
            {  
                AppendTextCallback d = new AppendTextCallback(AppendText);  
                this.textBox1.Invoke(d, text); 
            } 
            else 
            {  
                this.textBox1.AppendText(text);                  
            } 
        }  
    }
}

程序是一个ping -t的示例：