Unfortunately, requirements are often automatically identified with user requirements, such as the function related to a use case or the response time requested for a specific operation.

不幸的是，需求通常会自动识别为用户需求，例如与特定运营所请求的用户或响应时间相关的功能。

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To simplify things, write a check_count function you can use in either case, as shown below.

为简单起见，编写两种情况下都可以使用的一个check_count函数，如下面的清单所示。

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Sum-factors reduces the list one element at a time, using the function (in this case, +) supplied as the first parameter on each element.

sum - factors一次减少一个列表元素，它使用函数(本例中，是+)作为每个元素的第一个参数。

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Alternatively, an adviser may function as a broker, in which case he or she executes your instructions and perhaps advises on other matters.

FORBES: Is Your Investment Adviser Earning His Keep?

We have to say, that sounds like a bit like a case of form over function: the Up can detect when you're sleeping, as can the pricey new Basis band.

ENGADGET: Fitbit announces the Flex wristband, a $100 fitness tracker to take on the Jawbone Up