"I think he ought to do what General Petraeus did and that is decide on exactly the number he needs and we debate it and the president makes the ultimate decision,".

VOA: standard.2009.08.23

Well I ought to be able to do that by simply generalizing the loop. And that's what the next piece of code on your a hand out shows you.

好的通过生成这个循环,我应该能够达到目的,这也是你们的讲义中下一段代码。

麻省理工公开课 - 计算机科学及编程导论课程节选