又一本英文经典教材～教你怎么行之有效的编写c＋＋程序～更短更好更有效^_^

代码说明：

又一本英文经典教材～教你怎么行之有效的编写c＋＋程序～更短更好更有效^_^-another classic of the English teaching materials to teach you how to prepare effective c++ program to better and more effective short ^ _ ^