blocks|key|1762866|text|不幸的是，您必须同时安装这两个版本。旧版本的框架不会自动与新版本捆绑在一起。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1762867|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|$]]

Unfortunately you will have to install both versions. Older version of the framework are not automatically bundled with newer versions.

blocks|key|1547974|text|如果你安装的东西需要3.5，那么你就必须安装它。不过，按照.Net的工作方式，您可以同时安装1.1、2.x和3.5。程序指定它们所需的框架版本，并为它们加载该版本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1547975|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|$]]

If you install something that requires 3.5, then you will have to install it. The way that .Net works though, you can have 1.1, 2.x and 3.5 all installed at the same time. Programs specify the version of the framework they need, and that version is loaded for them.

blocks|key|1548024|text|特别是在.NET+2.0中，.NET框架中的许多事情都发生了变化(不仅仅是在语言级别)。您需要1.1版才能运行与该版本链接的程序。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1548025|现在，如果您的部分程序使用.NET+3.5，并且您可以访问所有源代码，我建议您将整个应用程序移植到.NET+3.5并使用它。这会让你花费更多的时间，但这将是值得的。|1548026|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|$]]

Especially with .NET 2.0 many things have changed in the .NET framework (not only at the language level). You will need version 1.1 to run programs linked against that version.

Now, if parts of your program use .NET 3.5, and you have access to all the source, I would recommend you port the entire application to .NET 3.5 and be done with it. It make take you a little longer, but it will be worth it moving forward.

blocks|key|1548062|text|我相信如果你安装了3.5版的框架，你会把所有的东西都返回到2.0版的框架。3.5+(和3.0)框架运行在2.0CLR上，所以你真正得到的是2.0运行时，以及3.0和2.5的额外好处。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1548063|您必须单独安装1.1框架。|1548064|您可以在此处查看已安装的版本:+C:\Windows\Microsoft.NET\Framework|1548065|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|$]]

I believe if you install the 3.5 framework, you get everything backwards to the 2.0 framework. The 3.5 (and 3.0) framework runs on the 2.0 CLR, so you're really getting the 2.0 runtime with the extra goodness of 3.0 and 2.5 on top of it.

You'd have to separately install the 1.1 framework.

You can see the installed versions here: C:\Windows\Microsoft.NET\Framework

blocks|key|1548097|text|许多为.NET+1.1构建的应用程序将在该框架的更高版本上运行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1548098|但是有一些突破性的变化，所以确保你的.NET+1.1应用程序构建是否可以在.NET+2.0或更高版本上运行的唯一方法就是对其进行测试。|1548099|微软记录了.NET+1.1和.NET+2.0之间已知的突破性变化(请参阅http://blogs.msdn.com/brada/archive/2005/11/14/492561.aspx)+-但指向此内容的链接似乎被断开了:(|offset|length|1548100|据我所知，至少有一次由于bug而导致的未经记录的破坏性更改。|1548101|entityMap|0|LINK|mutability|MUTABLE|url|http://blogs.msdn.com/brada/archive/2005/11/14/492561.aspx^0|0|0|10|1M|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$F|U|G|V|1|W]]|A|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

Many, perhaps most, applications built for .NET 1.1 will run on later versions of the framework.

But there were some breaking changes, so the only way to be sure if your app build for .NET 1.1 will run on .NET 2.0 or later is to test it.

Microsoft documented the known breaking changes between .NET 1.1 and .NET 2.0 (see <a href="http://blogs.msdn.com/brada/archive/2005/11/14/492561.aspx" rel="nofollow noreferrer">http://blogs.msdn.com/brada/archive/2005/11/14/492561.aspx</a>) - but the links to this content seem to be broken :(

And I know of at least one undocumented breaking change due to a bug.

I've had a little search and I was wondering if there is back compatibility for the .NET framework.

The real question is, if there's a program that uses .NET Framework 1.1, can I install 3.5 and be done, or do I have to install 1.1 and then if something uses 3.5 I have to install 3.5 as well?

.NET Framework versions

Windows

我进行了一些搜索，我想知道是否有.NET框架的向后兼容性。真正的问题是，如果有一个使用.NET Framework1.1的程序，我可以安装3.5并完成吗?还是我必须安装1.1，然后如果某个程序使用3.5，我也必须安装3.5？

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