C# WinForm中AppDomain.CurrentDomain.BaseDirectory与Application.StartupPath的区别示例如下:

private void Frm_Server_Load(object sender, EventArgs e)
        {
            MessageBox.Show(AppDomain.CurrentDomain.BaseDirectory);
            MessageBox.Show(Application.StartupPath );
         }

说明:

1.   AppDomain.CurrentDomain.BaseDirectory 返回结果为: D:\mycode\

     Application.StartupPath 返回结果为: D:\mycode

2.  Application.StartupPath 只能用于WinForm窗体中,而AppDomain.CurrentDomain.BaseDirectory既可以用于WinForm窗体中,也可以用于类库DLL文件中