blocks|key|2641432|text|C#是一种语言，.NET是一个平台。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2641433|在.NET上有很多语言:+C#、Visual、IronRuby等等。|2641434|维基|offset|length|2641435|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/.NET_Framework^0|0|0|0|2|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

C# is a language, .NET is platform.

There are lot of languages on .NET: C#, Visual Basic, IronRuby and more.

<a href="http://en.wikipedia.org/wiki/.NET_Framework" rel="noreferrer">wiki</a>

blocks|key|1117008|text|其他的答案都很接近，但并不完全正确。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1117009|C#是一种语言，它是在国际标准化组织标准中指定的。|unordered-list-item|offset|length|style|BOLD|1117010|.NET是微软的平台。|1117011|Visual+C#+.NET是2002年开发工具的名称。在2003年的版本中，这个名字被缩短为“VisualC#”。更受欢迎、更广泛的表亲是"Visual“。2003年之后，微软放弃了名为"Visual+C#“的独立商业产品(以及Visual+.NET)，推出了免费的Express产品。当前版本被称为VisualVISUAL2008Express版，一些人称之为“VisualC#速成版”。|1117012|同样，也有C%2B%2B，还有“VisualC%2B%2B”。前者是一种语言，后者是Microsoft的一种工具，您可以使用它在Windows上用该语言编写/编译/测试/调试应用程序。(但同样，大多数人使用"Visual“，其中包括VisualC#和VisualC%2B%2B的所有功能)|1117013|entityMap^0|0|0|2|0|0|4|0|0|E|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@$E|S|F|T|G|H]]|9|@]|A|$]]|$1|I|3|J|5|D|7|U|8|@$E|V|F|W|G|H]]|9|@]|A|$]]|$1|K|3|L|5|D|7|X|8|@$E|Y|F|Z|G|H]]|9|@]|A|$]]|$1|M|3|N|5|6|7|10|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|P|$]]

The other answers are close but not quite right. 

<ul>
<li>C# is the language, it is specified in an ISO standard.</li>
<li>.NET is the platform from Microsoft.</li>
<li>Visual C# .NET was the name of the developer tool in 2002. The name was shortened to "Visual C#" with the 2003 release. The more popular, expansive cousin is "Visual Studio". Subsequent to 2003, Microsoft dropped the independent commercial product called "Visual C#" (along with Visual Basic .NET) and introduced the free Express products. The current version is called Visual C# 2008 Express Edition, some people call it "Visual C# Express" for short.</li>
</ul>

In the same way, there is C++, and there is "Visual C++". The former is a language, the latter is a tool from Microsoft that you can use to write/compile/test/debug apps in the language, on Windows. (But again, most people use "Visual Studio" , which includes all the capabilities of Visual C# and Visual C++)

blocks|key|1088835|text|基本上，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1088836|C#是您正在编程的语言。|unordered-list-item|1088837|如果您所使用的框架是针对.NET编写的。|1088838|它的组合是C#.NET，还有VB.NET，C%2B%2B.NET，用于在VB/C%2B%2B中针对.NET框架进行编程。|1088839|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$]]|$1|E|3|F|5|D|7|M|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|N|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|O|8|@]|9|@]|A|$]]]|J|$]]

Basically,

<ul>
<li>C# is the language you're programming in.</li>
<li>.NET if the framework you're programming against.</li>
</ul>

The combination is C#.NET. There's also VB.NET, C++.NET, for when you're programming in VB/C++ against the .NET framework.

blocks|key|1088889|text|它的语言是C#，它运行的框架/平台是.NET。C#纯粹是一种.NET语言，在另一个平台上没有它的变体，不像Visual+(这就是为什么VB和VB.NET可能有不同的含义)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1088890|但是C#总是"C#.NET“，被称为”C#“。|1088891|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

The language is C#, and the framework/platform it runs on is .NET. C# is purely a .NET language, there is no variant of it that is targeted on another platform, unlike for instance Visual Basic (this is why VB and VB.NET can mean different things).

But C# is always "C#.NET" and is called just C#.

blocks|key|1088942|text|当人们说他们在使用"C#.Net“时，他们指的是在.Net+platform+上开发，同时使用C#。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1088943|entityMap^0|13|A|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

When people say they are using "C#.Net", they mean they are developing on the .Net platform while using C#

blocks|key|1117081|text|"VB或VB.NET“是有意义的，因为有.NET和非.NET版本的语言。这对C#没有意义，因为只有一个.NET版本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1117082|类似于ASP和ASP.NET。非.NET版本通常被称为“经典ASP”。|1117083|我从未听说过C#语言被称为"C#+.NET“，但我想您可以合理地使用这个术语(即使它有点多余)。|1117084|所以，不要担心，只有一种C#语言。|1117085|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

"VB or VB.NET" makes sense as there are both .NET and non-.NET versions of the language. It does not make sense with C# because there is only a .NET version.

Similar with ASP and ASP.NET. The non-.NET version is usually called "Classic ASP."

I've never heard the C# language referred to as "C# .NET" but I guess you could reasonably use that term (even if it's a little redundant.)

So don't worry, there is only one C# language.

blocks|key|1117150|text|C#语言仅与.NET框架一起使用。因此，当人们说C#时，它总是指.NET框架上的C#。由于C#不与任何其他框架一起使用(在编写此框架时)，C#.NET中的.NET是多余的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1117151|另一方面，Visual可以是旧的VB运行时，也可以是VB.NET。所以VB需要.NET的限定，所以你真正知道你在说什么，因为VB+6和VB.NET非常不同。|1117152|当我听到有人说C#.NET时，它通常来自于不是程序员的人。大多数招聘人员看到.NET被附加到VB、Visual和ASP等内容中，所以他们自然地将其附加到C#中，因为对他们来说，仅仅认为一切都是.NET就更容易了。|1117153|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

The C# language is only used with the .NET Framework. So when people say C#, it always means C# on the .NET Framework. Since C# isn't used with any other frameworks (as of writing this) the .NET in C#.NET is redundant. 

Visual Basic on the other hand can either be the old VB Runtime or VB.NET. So VB needs the .NET qualification so you really know what you language you are really talking about because VB 6 and VB.NET are pretty different.

When I hear someone say C#.NET, it is usually from someone who isn't a programmer. Most recruiters see .NET appended to things like VB, Visual Studio and ASP, so they naturally append it to C# because for them, it is easier to just think everything is .NET.

blocks|key|1117191|text|曾经有一段时间，微软的营销人员在他们能做的每一件微软产品上都贴上".NET“的后缀。有时，这是有意义的--例如，将VB6.0和早期版本与后来的版本区分开来。其他时候，这仅仅是市场营销；我认为他们会重新命名所有的服务器产品的.NET后缀：Windows.NET+Server，SharePoint.NET+Services等。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1117192|但这是一个短暂的现象，并迅速下降(在某些情况下，在产品实际推出之前)。|1117193|在C#的例子中，没有更早的版本，只是后来才有发布规范和看到其他实现的前景，所以无论它是名为C#.NET还是只是C#，都没有什么区别。|1117194|我想这只是营销人员对你-他们做了完全相同的"Active“前缀在那之前.|1117195|entityMap^0|X|4|1L|5|33|4|3A|I|3T|N|0|0|1|2|19|6|1J|2|0|M|6|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]|$9|Q|A|R|B|C]|$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Y|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|Z|8|@$9|10|A|11|B|C]|$9|12|A|13|B|C]|$9|14|A|15|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|16|8|@$9|17|A|18|B|C]]|D|@]|E|$]]|$1|L|3|-4|5|6|7|19|8|@]|D|@]|E|$]]]|M|$]]

There was a time when the marketing guys at Microsoft were sticking the suffix ".NET" on to every MS product they could. Sometimes it made sense - e.g. to distinguish VB 6.0, and earlier versions, from what came after. Other times it was just marketing phooee; at one point I think they were going to rechristen all the server products with the .NET suffix: Windows.NET Server, SharePoint.NET Services etc. 

But it was a short-lived phenomenon and quickly dropped (in some cases before the products were actually launched).

In the case of C#, there was no earlier version and only later the prospect of publishing the spec and seeing other implementations, so it made little difference whether it was called C#.NET or just C#.

I guess that's just marketing guys for you - they did exactly the same with the "Active" prefix before that...

blocks|key|1116946|text|语言是C#。C#也是网络平台上的一种流行语言，所以人们常说C#.NET，而C%2B%2B也是如此，人们称之为VisualC%2B%2B。在这两种情况下，它们真正的意思是使用.NET的.NET和使用MFC的C%2B%2B。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1116947|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

The language is C#. C# is also a popular language on the NET platform, so people often say C#.NET. The same thing used to happen for C++, where people would call it Visual C++. In both cases, what they really mean is C# using .NET and C++ using MFC.

blocks|key|1089058|text|C#是语言。但是它总是C#.net，因为C#语言在Visual系列发布时添加到Visual家庭中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1089059|在6中，C#不存在。|1089060|在2002/2003年的Visual+.NET中，介绍了C#。|1089061|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

C# is language. But it's always C#.net because C# language added to the Visual Studio Family when the Visual Studio.NET released. 

In Visual Studio 6, C# was not there.

In Visual Stuio .NET in 2002/2003, C# was introduced.

blocks|key|2641655|text|".NET“作为VS+2002的一般品牌。因此，它被附在与它相关的所有东西上--从本质上说，"C#“始终是--dotnet。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2641656|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

".NET" for the general branding for VS 2002. So it was attached to everything related to it also "C#" is always-dotnet by it's nature.

I always see people writing "C#" and "C#.NET". What is the correct name of this language? C# or C#.net? I'm sorry for this stupid question but it is really confusing (maybe there's another programming language named C#.net?)...

EDIT: if I'm programming against the .NET Framework, why call this C#.NET? Can I use the C# language with other frameworks?

Is it C# or C#.NET?

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我总是看到人们在写"C#“和"C#.NET”。这种语言的正确名称是什么？C#还是C#.net？对于这个愚蠢的问题，我很抱歉，但它确实让人困惑(也许还有另一种叫做C#.net的编程语言？)编辑：--如果我是针对.NET框架编程的，为什么把它称为C#.NET？我可以在其他框架中使用C#语言吗？

问是C#还是C#.NET？
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