例如，你可以创建一个以标准方法把测试结果保存到硬盘的日志函数。

For example, you might create a function that logs test results to disk in a standardized way.

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此外，所调用的函数的名称将输出到命令行，通过这种方式，模板即可为各函数添加简单的日志。

In addition, the template adds simple logging to each function by printing out to the command line the name of the function called.

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这种情况下返回的函数对象就是一个闭包，其中封装了一些日志代码和最初的函数调用所需要的数据。

In this case the returned function object is a closure which encapsulates some logging code and the data needed to call the original function.

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