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先整理?
book

先整理?

by Kent Beck
May 2025
Intermediate to advanced
124 pages
1h 7m
Chinese
O'Reilly Media, Inc.
Content preview from 先整理?

第 8 章 解释变量 解释变量

本作品已使用人工智能进行翻译。欢迎您提供反馈和意见:translation-feedback@oreilly.com

有些表达会成长。即使开始很小,它们也会成长。它们不断发展,不断壮大。然后,你戴着老花镜,试图,了解发生了什么。

当你理解了一个庞大的表达式的某一部分时,将子表达式提取到一个以表达式的意图命名的变量中。

您会在图形代码中经常看到这种情况:

return new Point(
    ...big long expression...,
    ...another big long expression...
)

在改变其中一种表达方式之前,先考虑Tidy:

x := ...big long expression...
y := ...another big long expression...
return new Point(x, y)

或者,这些表达方式的含义更加具体,比如宽度和高度、顶部和左侧、运行和上升。

通过这种 Tidy,您可以将来之不易的理解带回代码中。这样,您就可以更轻松地更改其中任何一个表达式(因为现在它们被分开了),并在下次需要更改代码时更快速地读取它们。

像往常一样,将 Tidy 提交与行为更改提交分开。

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Publisher Resources

ISBN: 9798341656949