.NET Framework的更高版本是否适用于针对早期版本的应用程序？ [重复]

This question already has an answer here:

这个问题在这里已有答案：

What happens when .NET 4.0 references a .NET 2.0 assembly? 1 answer
.NET 4.0引用.NET 2.0程序集时会发生什么？ 1个答案

If a .NET app is compiled targetting .NET 2.0, will an installation of Windows with only .NET 4.0 installed allow the app to execute without any problems?

如果.NET应用程序是针对.NET 2.0编译的，安装只有.NET 4.0的Windows安装是否允许应用程序执行而没有任何问题？

2 个解决方案

#1

They are supposed to be backwards compatible, but there are certain edge-cases that can cause problems. Unless you're pushing the limits of the framework, you should be okay.

它们应该是向后兼容的，但是某些边缘情况可能会导致问题。除非你在推动框架的限制，否则你应该没问题。

#2

I wouldn't simply ask the question here I would actually test it if the application actually means anything to anyone. This is a very simple thing to test and given that you're providing no info on the app in question any answer is going to be something like "probably, but it depends".

我不会简单地问这里的问题，如果应用程序实际上对任何人都有意义，我会实际测试它。这是一个非常简单的测试方法，并且鉴于您没有提供有关该应用程序的任何信息，任何答案都将是“可能，但它取决于”。

Update:

更新：

Are you forcing use of the (non existent) 2.0 runtime via the configuration file?

您是否通过配置文件强制使用（不存在的）2.0运行时？

<configuration>
   <startup>
      <supportedRuntime version="v2.0.50727"/>
   </startup>
</configuration>

#1