这绝对是主观的,但我想尽量避免它变成争论。我认为如果人们恰当地对待它,这将是一个有趣的问题。

这个问题的想法来自于我对“你最讨厌的语言的哪五件事?”问题的回答。我认为c#中的类在默认情况下应该是密封的——我不会把我的理由放在这个问题上,但我可能会写一个更完整的解释来回答这个问题。我对评论中的讨论热度感到惊讶(目前有25条评论)。

那么,你有什么有争议的观点?我宁愿避免那些基于相对较少的基础而导致相当宗教的事情(例如,大括号放置),但例如可能包括“单元测试实际上并没有多大帮助”或“公共字段确实是可以的”之类的事情。重要的是(至少对我来说)你的观点背后是有理由的。

请提出你的观点和理由——我鼓励人们投票给那些有充分论证和有趣的观点,不管你是否恰好同意这些观点。


当前回答

我有争议的观点是,“While”结构应该从所有编程语言中删除。

你可以很容易地复制而使用“重复”和一个布尔标志,我只是不相信这是有用的,有两个结构。事实上,我认为同时拥有“重复……”直到”和“While..”一种语言中的EndWhile”会让新程序员感到困惑。

更新-额外说明

新程序员在使用While时常犯的一个错误是,他们认为一旦测试条件标记为false,代码就会中断。因此,如果While测试在代码进行到一半时标记为假,则假定While循环爆发。使用Repeat时就不会犯这么多错误。

只要只有一个循环类型,我实际上并不关心这两个循环类型中哪一个被保留。我选择Repeat而不是While的另一个原因是“While”功能用“Repeat”写比用“While”写更有意义。

第二次更新: 我猜,我是目前唯一一个得分为负的人,这意味着这实际上是一个有争议的观点。(不像你们其他人。哈!)

其他回答

对于一个优秀的程序员来说,语言不是问题。

这可能不是很有争议,但我听到很多其他程序员的抱怨,比如“为什么他们不都用delphi?”,“c#糟透了”,“如果他们强迫我用java,我就会换公司”等等。 我所认为的是,一个好的程序员是灵活的,能够用他一生中可能不得不学习的任何编程语言编写好的程序

如果我有争议的话,我不得不说乔恩·斯基特并不是万能的。

您不应该停留在您发现的编写“有效”代码的第一种方法上。

I really don't think this should be controversial, but it is. People see an example from elsewhere in the code, from online, or from some old "Teach yourself Advanced Power SQLJava#BeansServer in 3.14159 minutes" book dated 1999, and they think they know something and they copy it into their code. They don't walk through the example to find out what each line does. They don't think about the design of their program and see if there might be a more organized or more natural way to do the same thing. They don't make any attempt at keeping their skill sets up to date to learn that they are using ideas and methods deprecated in the last year of the previous millenium. They don't seem to have the experience to learn that what they're copying has created specific horrific maintenance burdens for programmers for years and that they can be avoided with a little more thought.

事实上,他们似乎甚至没有意识到做一件事可能有不止一种方法。

I come from the Perl world, where one of the slogans is "There's More Than One Way To Do It." (TMTOWTDI) People who've taken a cursory look at Perl have written it off as "write-only" or "unreadable," largely because they've looked at crappy code written by people with the mindset I described above. Those people have given zero thought to design, maintainability, organization, reduction of duplication in code, coupling, cohesion, encapsulation, etc. They write crap. Those people exist programming in every language, and easy to learn languages with many ways to do things give them plenty of rope and guns to shoot and hang themselves with. Simultaneously.

But if you hang around the Perl world for longer than a cursory look, and watch what the long-timers in the community are doing, you see a remarkable thing: the good Perl programmers spend some time seeking to find the best way to do something. When they're naming a new module, they ask around for suggestions and bounce their ideas off of people. They hand their code out to get looked at, critiqued, and modified. If they have to do something nasty, they encapsulate it in the smallest way possible in a module for use in a more organized way. Several implementations of the same idea might hang around for awhile, but they compete for mindshare and marketshare, and they compete by trying to do the best job, and a big part of that is by making themselves easily maintainable. Really good Perl programmers seem to think hard about what they are doing and looking for the best way to do things, rather than just grabbing the first idea that flits through their brain.

如今,我主要在Java世界中编程。我见过一些非常好的Java代码,但我也见过很多垃圾代码,而且我还看到了更多我在开头描述的心态:人们选择了第一个看起来可以工作的丑陋代码块,而不理解它,也不考虑是否有更好的方法。

You will see both mindsets in every language. I'm not trying to impugn Java specifically. (Actually I really like it in some ways ... maybe that should be my real controversial opinion!) But I'm coming to believe that every programmer needs to spend a good couple of years with a TMTOWTDI-style language, because even though conventional wisdom has it that this leads to chaos and crappy code, it actually seems to produce people who understand that you need to think about the repercussions of what you are doing instead of trusting your language to have been designed to make you do the right thing with no effort.

我确实认为你可能会在另一个方向上走得太远:例如,完美主义完全忽略了你的真正需求和目标(通常是你的业务的真正需求和目标,通常是盈利能力)。但我不认为任何人都能成为一个真正伟大的程序员,除非学会投入一些高于平均水平的努力来思考寻找最好的(或至少是最好的一种)方法来编码他们正在做的事情。

糟糕的程序员是语言不可知论者

一个真正糟糕的程序员几乎可以用任何语言写出糟糕的代码。

尊重单一责任原则

乍一看,你可能不认为这是有争议的,但根据我的经验,当我向另一个开发人员提到他们不应该在页面加载方法中做所有事情时,他们通常会拒绝……所以对于孩子们,请不要再用我们经常看到的“什么都做”的方法了。