Swift uses playground programming

Playground is the "what you can read and write" programming model as Swift launches. Playground literally means a playground, a casino. That is, in swift you can write code while previewing the programming effect. This programming developer or starter developer brings unprecedented programming fun and experience. Here is a brief introduction to the use of playground:

1. Open the Xcode project and click Get started with a playground to create a playground project

2. Below is an example of the OSX code. , the right is the real-time display of the code, and the left is the code entry.

As you can see, Xcode's playground can show the project's interface effect in real time. This can increase the fun and interactivity of programming. It also facilitates debugging and locating errors in real time.

Swift uses playground programming