术语“挂钩"的含义是什么?在编程中? [英] What is meant by the term "hook" in programming?

问题描述

我最近在与一些人谈论我正在编写的程序时听到了挂钩"一词.尽管我从对话中推断出挂钩是一种函数，但我不确定该术语的确切含义.我搜索了一个定义，但找不到一个好的答案.有人可以让我了解这个术语的一般含义，也许还可以举一个小例子来说明这个定义?

I recently heard the term "hook" while talking to some people about a program I was writing. I'm unsure exactly what this term implies although I inferred from the conversation that a hook is a type of function. I searched for a definition but was unable to find a good answer. Would someone be able to give me an idea of what this term generally means and perhaps a small example to illustrate the definition?

推荐答案

从本质上讲，它是代码中的一个地方，允许您使用模块来提供不同的行为或在发生某些事情时做出反应.

Essentially it's a place in code that allows you to tap in to a module to either provide different behavior or to react when something happens.

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