SAS

从不有自己的想法(一切都是借来的)。 贪婪于庞大的数据集。 使用Java，但从未学习过什么是对象。 窃取Perl，但将其隐藏在其数据步骤中。 统计学家总是撒谎!

REBOL

REBOL是我最喜欢的语言之一。我不能说我有一个最喜欢的，尽管Haskell排名也很高。

Its odd syntax scares off many developers before they even give it a try. use [email rules url] [ ; A small DSL that sends email to people about URLs. rules: [ some [ into [ set email email! set url url! (send/subject email url reform [ "Check Out" url ]) ] ] ] ; Global context notify: func [ [catch] dsl [block!] ] [ unless parse dsl rules [ throw make error! "You screwed up somehow." ] ] ] notify [ [ a@b.com http://www.google.com ] [ b@c.com http://www.yahoo.com ] ] Recursive dialects are very easy to validate with PARSE but very difficult to evaluate. (Stacks can be helpful here.) REBOL has very poor integration with many popular technologies, particularly XML. I suspect this is partly arrogance, because the REBOL BLOCK! datatype can do almost everything XML can do. However, the real world has XML in it. No Unicode. Thanks to AltMe, REBOL's user community is very insular. I can understand why they want to use AltMe. It's written in REBOL and shows off its strengths. Unfortunately it also puts them off on their own little island.

即将到来的REBOL 3有望解决许多这些问题，除了最后一个。

c# 4.0

“动态”关键字，被滥用的时机已经成熟。如果你想要/需要使用反射，使用并让它明显地显示你正在使用它，不要试图用动态来伪装它。

Python:

You usually have the entry point of the program at the end of the file. (Because if it calls any function defined in the module, it has to occur after those functions in the sources.) I hate it when you have to spend time looking for the entry point of a program, so I always have a simple main.py file with: def main(): ... if __name__ == '__main__': main() When an exception is raised, it can only be catched by the main thread. Or something like that. Destructors are quite useless, because when written in Python they may break garbage collection IIRC. I've never figured out how relative imports work in Python 2. I'd like to see more collections in the standard library. For example: linked lists, thread-safe collections, ...

C#

No easy way to check if a type is Numeric It means you are probably stuck using most of the microsoft stack, IIS and MSSQL Instead of being a specific tool for a specific problem, C# tries to be a language for every paradigm. Lack of community. Sure, there are starting to be open-source frameworks and libraries for C#. The same ones that have been available to Java developers for years. Hard to find good help. The internet is littered with poor examples of how to solve problems with C#. This goes back to problem #3.

Ruby

无类型推断 方法/函数不是一级对象 变量的范围不是词法的，尽管块变量的范围是词法的 Def内部的Def super和super()的区别