很好，问题的后半部分并不完全正确——我记得有些人尝试过为OO应用开发建立政策和最佳实践，但这些话题从来没有走出过IT部门。

Well, the latter is not 100% correct - I remember some attempts to set up policies and best practices on the OO application development but this topic had never left the IT boarders.

youdao

我将遇到一个非常迟钝的用户，他会尝试所有可能的方法破坏我的应用程序，以荒谬的方式把事情搞得一团糟，根本不做任何思考。

I'm going to have really dumb users, who manage to find every possible way to break my application, by doing things out of order, in ridiculous ways, and without any thought at all.

youdao

到目前为止，我曾工作过的一些公司事实上都在尝试管理具有大型缓存的应用程序，因此都考虑了此建议。

Some companies I have worked with as of late are in fact trying to manage applications with a large cache, and as a result have taken this advice to heart.

youdao

I've certainly written code that has this problem, I've tried to use my own code that has this problem, and good to us, right, good hygiene, I'm going to use that word again here, of getting into the habit of writing defensive code up front, it's part of that collection of things that you ought to do is a great thing to do.

我举手了吧？,我当然写过犯这种错误的程序了,我也尝试过应用含有这种错误的代码，不错，好的卫生，我还是要用这个词,对我们有帮助，养成写防卫性,代码的好习惯，是你应该做的,一系列事情之一,也是我们日后要做的主要的事情。

麻省理工公开课 - 计算机科学及编程导论课程节选