You need it in a couple of different places in an order-processing program you're working on, so you write the code as a reusable function you can invoke from anywhere in your program.

您需要在正在处理的订单处理程序中的几个不同位置使用此服务，因此将代码编写为具有可重用功能，以便从程序中的任何位置进行调用。

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It is not hard, of course, to simply write a compute function that builds in the different return types; the decorator only takes a few lines, after all.

当然，简单地编写一个具有不同返回类型的compute函数并不困难；毕竟decorator只需占据几行。

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To achieve this, you can write a binding function that will alter elements with the highlight-effect class to have a different background color, as shown in Listing 15.

为此，您可以编写一个绑定函数，用于修改元素的highlight -effect类以变更元素的背景颜色，如清单15所示。

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To achieve this, you can write a binding function that will alter elements with the highlight-effect class to have a different background color, as shown in Listing 15.

为此，您可以编写一个绑定函数，用于修改元素的highlight -effect类以变更元素的背景颜色，如清单15所示。

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