string s = System.IO.Directory.GetCurrentDirectory();

  Console.WriteLine(s);// C:\Users\r-\documents\visual studio 2013\Projects\TestMVC\ConsoleApplication1\bin\Debug

  s=s.Substring(,s.LastIndexOf("\\"));

  Console.WriteLine(s);//C:\Users\r-\documents\visual studio 2013\Projects\TestMVC\ConsoleApplication1\bin

  s=s.Substring(, s.LastIndexOf("\\"));

  Console.WriteLine(s);//C:\Users\r-\documents\visual studio 2013\Projects\TestMVC\ConsoleApplication1

//获取到bin目录的下层路径：bin\Debug\

            string aa = System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase;

            string cc = System.AppDomain.CurrentDomain.BaseDirectory;

            //获取到bin目录：bin\Debug

            string dd = System.Environment.CurrentDirectory;

            string ee = System.IO.Directory.GetCurrentDirectory();

            string ff = System.Windows.Forms.Application.StartupPath;

            //获取程序.exe

            string bb = System.Windows.Forms.Application.ExecutablePath;