The Lines of Code chart, shown in Figure 2, can be pretty interesting

代码行图表如清单 2 所示，它可能非常有趣

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The following chart and code samples show what really happens when the PA selects the option to display the errands.

下面的图表和代码样本显示了当 PA 选择显示差事选项时实际发生的事情。

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The code in Listing 4 adds some controls to the chart.

清单 4 中的代码将一些控件添加到图表中。

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I can either look at my flow chart, or I can look at the code. If I look at the flow chart, it says, I'm at this point. Look at ANS squared. Is it less than or equal to-- sorry, first of all, 0 ANS squared is 0, is it less than or equal to x, yes.

我可以看流程图也可以看我的代码,如果我看流程图的话，流程图这么说的，在这一点，看看ANS的平方,看是不是小于等于-对不起，首先，ANS的平方是。

麻省理工公开课 - 计算机科学及编程导论课程节选

OK, so how can I code this up? Well, you might think, let's just jump in and write some code, I don't want to quite do that though, because I want to show you another tool that's valuable for thinking about how to structure the code, and that is a something called a flow chart. Now.

好，那么我怎么把这个以代码实现呢，你可能会想，让我们进去直接写代码把,但是我不想这么做，因为我想教给大家另外一项很有价值的,用来组织代码的工具，叫做流程图,现在，像Guttag教授,和我这么大岁数的人。

麻省理工公开课 - 计算机科学及编程导论课程节选

Mr. Bush: You should be able to instruct all of the doctors that you see to make your records available through a portal, and if you get stuck in an emergency room somewhere, there ought to be an emergency access code, that any doctor in the country can look up your chart.

WSJ: Boss Talk: Updating Doctors' Offices With the Help of Cloud Services

With well over a million developers worldwide (see chart), it is increasingly used, not only as the code of choice for Internet applications, but also as the glue that binds together software in big companies.

ECONOMIST: Strength through Joy | The