Which is sort of the question we'd immediately like to ask. Instead, I asked why did it produce the result it did. So I'm not asking myself what's wrong? Or how could I make it right?

其实这个问题我们马上就要问,我问了为什么它会返回这样的结果,因此我并没有去在意哪儿错了,或者我该怎么改正它，我在意的是它？

麻省理工公开课 - 计算机科学及编程导论课程节选