What can I do in C# 5 with .Net 4.5 that I couldn't do in C# 4 with .Net 4? [closed]

问题

Closed. This question needs to be more focused. It is not currently accepting answers.

---

Want to improve this question? Update the question so it focuses on one problem only by editing this post.

Closed 4 years ago.

I have Visual Studio 2012 RC installed on Windows 8 Release Preview and my question is are there any useful new features not related to Metro, or is Metro what seperates .Net 4 and .Net 4.5?

回答1:

See What's New in the .NET Framework 4.5 and What's New for Visual C# in Visual Studio 2012.

The biggest new feature of C# 5.0 is better support for asynchronous operations, using the new await keyword.

来源：https://stackoverflow.com/questions/11548373/what-can-i-do-in-c-sharp-5-with-net-4-5-that-i-couldnt-do-in-c-sharp-4-with-n