Another good thing to do when you're really stuck is walk away. Take a break. Come back and look at it with fresh eyes of your own.

当你卡住的时候另外一件有益的事,就是走开休息一会儿,再回来看代码的时候你的眼睛就清醒多了。

麻省理工公开课 - 计算机科学及编程导论课程节选

It's a bad habit to get into, because when you come back to it, it may haunt you later on down the road. So really get into that notion of trying to be defensive as you program.

来运行程序的时候,错误就会出现缠住你了,因此现在我们真的要培养,在程序中有防卫性设计的概念。

麻省理工公开课 - 计算机科学及编程导论课程节选