How to implement this - generate setter automatically?

问题

In Standford CS 193P 2013-2014 Fall lecture 7, the instructor shows the following thing. But I can't reproduce that mysef in Xcode 6. Anybody knows that? (.gif can also be seen here)

回答1:

It's code snippet.

You can create your own code snippet in XCode.

1. Type the template code in XCode
2. Copy it and drag it to the comment section in the Utility panel
3. Give a title and completion shortcut
4. Whenever you type the shortcut, XCode will show the auto-completion option

来源：https://stackoverflow.com/questions/28779480/how-to-implement-this-generate-setter-automatically