using System;
namespace GetOSVersionExp
{
  class Program
  {
    static void Main(string[] args)
    {
      Version currentVersion = Environment.OSVersion.Version;
      //OS版本号
      Console.WriteLine("Major:{0}", currentVersion.ToString());
      //OS版本号的主要版本号
      Console.WriteLine("Major:{0}", currentVersion.Major);
      //OS版本号的次要版本号
      Console.WriteLine("Minor:{0}", currentVersion.Minor);
      //OS版本号的内部版本号
      Console.WriteLine("Build:{0}", currentVersion.Build);
      //OS版本号的修订部分的值
      Console.WriteLine("Revision:{0}", currentVersion.Revision);
      //OS版本号的修订号的高16位
      Console.WriteLine("MajorRevision:{0}", currentVersion.MajorRevision);
      //OS版本号的修订号的低16位
      Console.WriteLine("MinorRevision:{0}", currentVersion.MinorRevision);
    }
  }
}

using System;
using System.Reflection;
 
namespace GetOSVersionExp
{
  class Program
  {
    static void Main(string[] args)
    {
      Assembly assem = Assembly.GetExecutingAssembly();
      AssemblyName assemName = assem.GetName();
      Version ver = assemName.Version;
      Console.WriteLine("{0}, Version {1}", assemName.Name, ver.ToString());
    }
  }
}

using System;
 
namespace GetOSVersionExp
{
  class Program
  {
    static void Main(string[] args)
    {
      Version currentVersion = Environment.OSVersion.Version;
      Version compareToVersion = new Version("6.2");
      if (currentVersion.CompareTo(compareToVersion) >= 0)
      {//win8及其以上版本的系统
        Console.WriteLine("当前系统是WIN8及以上版本系统。");
      }
      else
      {
        Console.WriteLine("当前系统不是WIN8及以上版本系统。");
      }
    }
  }
}