说明：  我们学习的C/C++程序都是DOS程序（或称为Windows控制台程序），也就是现在大学里的开设的《C/C++程序设计》的内容，这些程序由于不涉及到Windows 编程的细节，因此比较容易入门学习，这对训练初学者的编程思想是很有用的，也是有益的。
(We can learn C/C++ procedures are DOS programs (known as the Windows Control Panel), which is now the university opened the C/C++ programming " content, these programs do not involve the details of Windows programming, Therefore, getting started is easier, which is useful training for beginners programming ideas, but also useful.)