编程中的脚手架是什么意思？

这里是stackoverflow上的一个回答：

Scaffolding is a meta-programming method of building database-backed software applications. It is a technique supported by some model-view-controller frameworks, in which the programmer may write a specification that describes how the application database may be used. The compiler uses this specification to generate code that the application can use to create, read, update and delete database entries, effectively treating the template as a "scaffold" on which to build a more powerful application.

翻译过来就是：

“脚手架”是一种元编程的方法，用于构建基于数据库的应用。许多MVC框架都有运用这种思想。
程序员编写一份specification（规格说明书），来描述怎样去使用数据库；而由（脚手架的）编译器来根据这份specification生成相应的代码，进行增、删、改、查数据库的操作。我们把这种模式称为"脚手架"，在脚手架上面去更高效的建造出强大的应用！

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是不是很令人振奋，由“程序员手写代码”跨越到了“程序员指挥机器自动生成代码”的时代~~ 并且利用脚手架，我们可以爬到更高的地方、建更高的楼房~

stackoverflow链接： frameworks - What is scaffolding? Is it a term for a particular platform?