The idea of a function is, that I'm going to capture a common pattern of computation.

函数的目的,就是寻找计算的共同模式。

麻省理工公开课 - 计算机科学及编程导论课程节选

So here's a simple flow chart that I'm going to use to capture what I just described.

就和我刚才描述的一样的流程图,然后我会，再说一次，我实际上和他们原来。

麻省理工公开课 - 计算机科学及编程导论课程节选

Computing square root. I'm going to capture it in a piece of code, I'm going to be able to refer to it by a name, and I'm going to suppress the details, meaning inside of that computation, you don't need to know what it does. You just need to know, if I give it the right kind of input, it'll give me back an input that satisfies the contract that I set up.

比如计算平方根,我会用一段代码来说明,我将给它命名,并且忽略细节,意思就是在这一段计算过程中,你不用知道它做了什么，你只需知道，如果我进行了正确的输入,它将会给我符合条件的输出。

麻省理工公开课 - 计算机科学及编程导论课程节选

So today I'm announcing a Carbon Capture and Storage Task Force that will be charged with the goal of figuring out how we can deploy affordable clean coal technology on a widespread scale within 10 years.

WHITEHOUSE: Meeting with Governors on Energy Policy

"He has to capture the agenda back and remind people, 'I'm the businessman who made a lot of money, and I can help you make lots of money, '" Hetherington said.

CNN: Is Romney's campaign stalled?

If the Democrats do capture firm control of Congress as well as the White House, they would do well to avoid the M-word: mandate.

NPR: Let's Talk About The Risks of Undivided Government