The genesis of the computer revolution was in a machine.The genesis of our programming languages thus tends tolook like that machine.
But computers are not so much machines as they are mind amplification
tools (“bicycles for the mind,” as Steve Jobs is fond of saying) and a
different kind of expressive medium. As a result, the tools are beginning
to look less like machines and more like parts of our minds, and also like
other forms of expression such as writing, painting, sculpture, animation,
and filmmaking. Object-oriented programming (OOP) is part of this
movement toward using the computer as an expressive medium.
“為什么面向?qū)ο蟮木幊虝谲浖_發(fā)領(lǐng)域造成如此震憾的影響？”

面向?qū)ο缶幊蹋∣OP）具有多方面的吸引力。對管理人員，它實現(xiàn)了更快和更廉價的開發(fā)與維護(hù)過程。對分析與設(shè)計人員，建模處理變得更加簡單，能生成清晰、易于維護(hù)的設(shè)計方案。對程序員，對象模型顯得如此高雅和淺顯。此外，面向?qū)ο蠊ぞ咭约皫斓木薮笸κ咕幊坛蔀橐豁椄谷擞鋹偟娜蝿?wù)。每個人都可從中獲益，至少表面如此。
如果說它有缺點，那就是掌握它需付出的代價。思考對象的時候，需要采用形象思維，而不是程序化的思維。與程序化設(shè)計相比，對象的設(shè)計過程更具挑戰(zhàn)性——特別是在嘗試創(chuàng)建可重復(fù)使用（可再生）的對象時。過去，那些初涉面向?qū)ο缶幊填I(lǐng)域的人都必須進(jìn)行一項令人痛苦的選擇：