People could send a text message with the code and get a message back confirming that what they bought is listed in a database.

VOA: special.2010.03.01

Now we're gonna hand you some framework, that code that we wrote with some blanks to get you accustomed to the idea of one, writing larger programs than time might allow if you were doing it on your own.

现在就提供给你们一些框架，在代码中有些空白,是为了让你们了解其中的思想，如果是你自己，若时间允许,那就尽量写大的程序。

哈佛公开课 - 计算机科学课程节选

All right so-- yeah, how do I get to the code for that? That's interesting.

噢，我是怎么写出这个的代码,这件事儿挺有意思的。

麻省理工公开课 - 计算机科学及编程导论课程节选

It's okay. So this first line of code, I will get it started but then I'm gonna have you take over and actually instruct Philip what to do here.

第一行代码就从这里开始，接下来我会让你,接管并指导飞利浦。

哈佛公开课 - 计算机科学课程节选

So this means we can code for it in DNA, you don't have to worry how am I going to get into the cell.

这意味着我们可以在DNA中编写它，你不用担心它怎么进到细胞里去。

麻省理工公开课 - 化学原理课程节选

What does that say? It says if in the code up here I get an exception of that sort, I'm going to go to this place to handle it.

这意味着如果在代码中,我得到一个这样的异常,我能到这里来处理它。

麻省理工公开课 - 计算机科学及编程导论课程节选

And that then let's me get to, basically, base this code. Having done that, height I simply call base with get float, I call height with get float, and do the rest of the work.

现在让我们看看这段代码，其实已经写好了，我简单的调用下，用来得到一个浮点数，再调用下，来得到另外一个浮点数，然后做剩下的工作就可以了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Right, so the things we want you to take away from this are, get into the habit of using pseudo code when you sit down to start a problem, write out what are the steps.

好，这儿我想大家明白的就是,养成解决问题时先写伪代码的好习惯,把步骤都写出来,我想要告诉你们的是一个好的程序员。

麻省理工公开课 - 计算机科学及编程导论课程节选

This chart, very boring and uninteresting but useful to say there are very well defined rules as to when you're writing code, what operators, like what syntax should get evaluated first.

这个图表，看起来很烦，很无趣，但是它很有用,有非常明确的规定,譬如，当你写代码时，就会涉及操作符的优先级。

哈佛公开课 - 计算机科学课程节选

So now, in this case, this code is going to, when we get here, check, and if you haven't seen that strange thing there, that exclamation point in bang computer-ese called a bang, it says x if ANS star ANS is not equal to x, all right?

那么现在，在这个例子中，当我们执行到这里，代码会去检查,如果你没有看到过这个奇怪的东西,这个感叹号在计算机学中被叫做,代码的意思是如果ANS的平方不等于？

麻省理工公开课 - 计算机科学及编程导论课程节选

So, after the second line for code here char * s1 gets the return value of get string this is what the state of our world looks like.

在第二行之后,这个代码char，*s1，等于GetSting的返回值,这就是它看起来的状态。

哈佛公开课 - 计算机科学课程节选

So here is the simplest program which is perhaps an ironic statement that you can implement with this language called C. So it takes a few lines of code to actually get something up and running and as you'll recall last Friday, I didn't even get this up and running because part of the process of writing a program is to one, write it.

让我们回到这个最简单的程序,你们也许觉得啼笑皆非，这么简单的例子,用C语言写出来就可以了嘛，的确只需要几行代码,就可以让这个程序跑起来,就像上周五的那样，我之所以没让它跑起来,因为编程步骤之一,就是“写“

哈佛公开课 - 计算机科学课程节选