Here's the problem with that technique, and by the way, a number of programming languages use this, including Lisp.

这会指向元素的值，然后对内存进行切分,关于这种技术有个问题，顺路说下。

麻省理工公开课 - 计算机科学及编程导论课程节选

This is the sort of thing that people who do numerical programming worry about all the time. And there are a lot of a little tricks they use to deal with that, they'll perturb it a little bit, things like that.

这是一些做计算编程,要时刻注意的问题,当然有的时候我们还需要,应对一些假象，比如像这样被扰乱的。

麻省理工公开课 - 计算机科学及编程导论课程节选

In Scratch you may have realized that, "I could implement my program this way with these puzzle pieces, but it kind of feels -- like I could use these puzzle pieces instead" -- that's absolutely the case in programming.

在Scratch中你可能已经意识到，“我可以用这一段代码来,执行我的程序，不过这有点感觉到,我可以用这些代码段来代替“,那绝对是编程中的一个情况。

哈佛公开课 - 计算机科学课程节选

And we're going to use this object-oriented programming, typically to create something called data abstractions.

在接下来的几天,你会明白我们这里说的具体含义,它的一个同义词。

麻省理工公开课 - 计算机科学及编程导论课程节选

What we're going to see with programming language is that we're going to use higher-level abstracts.

我们将要看到的是,我们将会在高端的阶段中使用编程语言。

麻省理工公开课 - 计算机科学及编程导论课程节选

I stress it in particular because I know you're all going to get into this stage; you've got a problem set due in a couple of hours, you're still writing the code, you don't want to waste time, and I'm going to use quotes on "waste time", doing those extra things to do the defensive programming, you just want to get the darn thing done.

我特别强调了这一点,因为我知道你们都会慢慢成为程序员;,你在写代码过程中造成了一系列的错误，你还在写代码，你不想浪费时间，我想把“浪费时间“用引号圈起来，浪费时间来做因为防卫性程序设计，而带来的这些额外的事情,你只想赶紧把程序写完，这不是一个好习惯，因为当你做完回头。

麻省理工公开课 - 计算机科学及编程导论课程节选

In C and most programming languages, if you need greater than or equal to, use greater than and then right next to it with no space put equal to, and that conjures up the same idea.

在C和大部分的编程语言中，如果你需要表示大于等于,在“>“号后边加上一个“=“,中间不要空格，那使我们联想到同样的想法。

哈佛公开课 - 计算机科学课程节选