问题
Both of these articles talk about how to develop extensions for VS2013, but both presume that you have an extension project type available
- Extending the Visual Studio Environment
- Creating Extensions By Using the VSIX Project Template
As of 11/9/13, there are already 544 extensions for VS2013 in the gallery, so I'm guessing it's possible, but I can't find the template anywhere.
回答1:
Found It! You need to download the
Visual Studio 2013 SDK
Once installed, the project template will appear here:

回答2:
First install the Visual Studio 2013 SDK. It can me easily found on MS.
来源:https://stackoverflow.com/questions/19910724/where-is-visual-studio-2013-extensibility-vsix-project-template