private static void pushModify()
        {
            string wkDir = @"E:\DotNet2010\单位工程\Git.Client\lib2Test\ConsoleApplication1\bin\Debug\D2Git\.git";
            using (var repo = new Repository(wkDir))
            {
                //此处设置断点，用计事本修改1.txt的内容并保存
                FileStatus status = repo.Index.RetrieveStatus("1.txt");
                repo.Index.Stage("1.txt");
                status = repo.Index.RetrieveStatus("1.txt");

                //commit...
                //push...
            }

            Console.Read();
        }