一段国外的PING程序（C#）

比较有用。
    //**************************************
    //     
    // Name: Ping .NET Class!
    // Description:Ping a machine from .NET.
    //     This code is CLR compliant.
    // By: Carl Mercier
    //
    // Assumes:The code is a complete consol
    //     e application which can easilly modified
    //     to become Windows Form.
    //
    //This code is copyrighted and has    // limited warranties.Please see http://
    //     www.Planet-Source-Code.com/xq/ASP/txtCod
    //     eId.335/lngWId.10/qx/vb/scripts/ShowCode
    //     .htm    //for details.    //**************************************
    //     
    
    using System;
    namespace myping
    {
    ///

    /// Summary description for Class1.
    ///