闭合和对象 [英] closures and objects

问题描述

函数式编程就像经典（ Mark Twain的类型）。
在阅读关于SICP的另一篇文章时，人们谈论的是
，这对我的思考产生了巨大的影响，我想起了这个，我以前读过的

Functional programming .. is like classic ( Mark Twain's type). While reading another articles about SICP, where people are talking about the great impact closures had on there thinking, i got reminded of this, which i read ages ago

关闭是穷人的对象
对象是可怜的人的关闭

Closures are poor man's objects Objects are poor man's closure

（不能记住确切的源，但它是程序员rosetta石头，或编程的禅宗，
或编程的tau ... google已经变得如此拥挤，不能去原始来源）

( Can't recall exact source but it was programmers rosetta stone, or zen of programming, or tau of programming ... google has become so crowded that can't go to original source )

程序员...你的采取...
是关闭的东西，你总是缺少..或只是一些语法糖，
一个预处理器可以做！

So co-programmers ... What is your take ... are closure something that you were always missing .. or just some syntactic sugar, which a preprocessor can do !!

推荐答案

http://people.csail.mit.edu/gregs/ll1-discuss-archive-html/msg03277.html

那位尊敬的高手Qc Na正和他的学生安东一起走。希望到
提示主人讨论，安东说大师，我听说
对象是一件很好的事 - 这是真的吗？ Qc Na看起来很可惜，他的学生
回答说：愚蠢的学生 - 对象只是一个穷人的
关闭。

The venerable master Qc Na was walking with his student, Anton. Hoping to prompt the master into a discussion, Anton said "Master, I have heard that objects are a very good thing - is this true?" Qc Na looked pityingly at his student and replied, "Foolish pupil - objects are merely a poor man's closures."

他从他的主人离开，回到他的牢房，
意图学习闭包。他仔细阅读了整个Lambda：The
Ultimate ...系列文章及其表兄弟，并实现了一个小型的
Scheme解释器和一个基于闭包的对象系统。他学到了很多，而
期待着告诉他的主人他的进步。

Chastised, Anton took his leave from his master and returned to his cell, intent on studying closures. He carefully read the entire "Lambda: The Ultimate..." series of papers and its cousins, and implemented a small Scheme interpreter with a closure-based object system. He learned much, and looked forward to informing his master of his progress.

安东尼在下一次和Qc Na一起散步时，试图用
说大师，我勤奋地研究这个问题，现在理解
的对象是真正的穷人的关闭。 Qc Na用他的棍子敲打
Anton，说：你什么时候学习？闭合是一个穷人的
对象。在那一刻，安东变得开明。

On his next walk with Qc Na, Anton attempted to impress his master by saying "Master, I have diligently studied the matter, and now understand that objects are truly a poor man's closures." Qc Na responded by hitting Anton with his stick, saying "When will you learn? Closures are a poor man's object." At that moment, Anton became enlightened.

- Anton van Straaten

-- Anton van Straaten

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