The functional programming approach is easy to understand, but can be difficult to apply if you are used to the more procedural and state-focused imperative languages.

函数编程方式很容易理解，但是如果您习惯了过程序和关注状态的命令式语言，可能不太容易适应它。

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These are procedural steps following the "Depth in Defense" approach.

这是承接“纵深防御”的程序。

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So far, the examples have taken a procedural approach: the algorithm is akin to a loop over the entire document.

目前为止，示例采用的是过程性方法：这种算法无非是在整个文档上进行循环。

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The report said the principle should be enshrined in a resolution of the House, and suggested a range of procedural changes to entrench the approach.

BBC: England-only laws 'need majority from English MPs'