C#ping 测试网速

using System; using System.Collections.Generic; using System.Text; using System.Diagnostics; using System.Text.RegularExpressions; namespace alonesail.PingEx {     public static class Ping     {         #region codes         private const int TIME_OUT = 100;         private const int PACKET_SIZE = 512;         private const int TRY_TIMES = 2;

        private static Regex _reg = new Regex( @"时间=(.*?)ms", RegexOptions.Multiline | RegexOptions.IgnoreCase );         private static float LaunchPing( string strCommandline, int packetSize )         {             Process proc = new Process();             proc.StartInfo.Arguments = strCommandline;             proc.StartInfo.UseShellExecute = false;             proc.StartInfo.CreateNoWindow = true;             proc.StartInfo.FileName = "ping.exe";             proc.StartInfo.RedirectStandardInput = true;             proc.StartInfo.RedirectStandardOutput = true;             proc.StartInfo.RedirectStandardError = true;

            proc.Start();             string strBuffer = proc.StandardOutput.ReadToEnd();             proc.Close();

            //Console.WriteLine( strCommandline );             //Console.WriteLine( strBuffer );

            return ParseResult( strBuffer, packetSize );         }

        private static float ParseResult( string strBuffer, int packetSize )         {             if ( strBuffer.Length < 1 ) return 0.0F;

            MatchCollection mc = _reg.Matches( strBuffer );             if ( mc == null || mc.Count < 1 || mc[0].Groups == null ) return 0.0F;             int avg;             if ( !int.TryParse( mc[0].Groups[1].Value, out avg ) ) return 0.0F;             if ( avg <= 0 ) return 1024.0F;

            return (float)packetSize / avg * 1000 / 1024;         }         #endregion codes

        /// <summary>         ///         /// </summary>         /// <param name="strHost">主机名或ip</param>         /// <returns>kbps/s</returns>         public static float Test( string strHost )         {             return LaunchPing( string.Format( "{0} -n {1} -l {2} -w {3}", strHost, TRY_TIMES, PACKET_SIZE, TIME_OUT ), PACKET_SIZE );         }

        /// <summary>         ///         /// </summary>         /// <param name="strHost">主机名或ip</param>         /// <param name="PacketSize">发送测试包大小</param>         /// <param name="TimeOut">超时</param>         /// <param name="TryTimes">测试次数</param>         /// <returns>kbps/s</returns>         public static float Test( string strHost, int PacketSize, int TimeOut, int TryTimes )         {             return LaunchPing( string.Format( "{0} -n {1} -l {2} -w {3}", strHost, TryTimes, PacketSize, TimeOut ), PacketSize );         }     } }//end classs

//调用程序 using System; using System.Collections.Generic; using System.Text;

namespace Ivan.PingEx {     class Program     {         static void Main( string[] args )         {             Console.WriteLine( Ping.Test( "http://hi.baidu.com/gufanlf" ) );             Console.Read();         }     } 

}