We've already seen how to use an anonymous subroutine or a reference to a named subroutine.

我们已经看到如何使用匿名的子例程或者对指定子例程的引用。

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The dispatcher can either contain the actual code used to deal with a particular element as an anonymous subroutine or it can contain a reference to a named subroutine defined elsewhere.

分派表可以包含用来处理特定元素的实际代码(匿名子例程)，也可以包含对别处定义的命名子例程的引用。

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Listing 4 shows the printPassword subroutine, which is used to print out the password keys and timings for reference.

清单4显示了printpassword子例程，该子例程用于输出密码键和计时以供参考。

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