C# 获取程序运行目录

                string a = "BaseDirectory:" + AppDomain.CurrentDomain.BaseDirectory + "\r\n" +
                    "MainModule:" + Process.GetCurrentProcess().MainModule.FileName + "\r\n" +
                    "ApplicationBase:" + AppDomain.CurrentDomain.SetupInformation.ApplicationBase + "\r\n" +
                    "StartupPath:" + Application.StartupPath + "\r\n" +
                    "ExecutablePath:" + Application.ExecutablePath + "\r\n" +
                    "GetCurrentDirectory:" + Directory.GetCurrentDirectory();