Well, if you're going to do that, you've got to be able to find what you're looking for in a page in two steps.

如果让你去实现的话，你肯定是通过两个步骤,去找你想要的网页中的内容的。

麻省理工公开课 - 计算机科学及编程导论课程节选

> David: Yes, if you really, if you want to reimplement the solution from last where whereby it was buggy, you can absolutely say take the address of x then go there, thereby undoing all of the work you just did.

>，大卫：是的，如果你的确，如果某个地方有bug，你想要重新,实现那个解决方案，你绝对可以通过x的地址，定位到那里去，然后撤销你刚做的所有工作。

哈佛公开课 - 计算机科学课程节选