Swift Type nesting

Classes, structs, and enumerations in Swift can be nested, that is, in a type's internal definition class, which is nested in Java called an inner class, in C # is called a nested class, and its form and definition are similar, and the type nesting is a bit of having access to members outside of it, including methods, properties, and other nested types , nesting can also have multiple levels

Example:

class employee{        var no: int = 0         var name : string = ""          var job : string = ""          var salary : double = 0        var  dept:department=department ()         var day: weekdays  = weekdays.friday        } struct department{         var no : Int = 100         var name:string = "Sales"}    enum weekdays{         case Monday         case Tuesday        case wednesday 

Case Thursday case Friday struct day{static var message:string = ' Today is ... '}} var emp = Employee () println (emp.dept.name) println (emp.day)

This article is from the "Ordinary Road" blog, please be sure to keep this source http://linjohn.blog.51cto.com/1026193/1621239

Swift Type nesting