SWIFT Enumeration (2)

Previously recorded by Swift enumeration (1), this is the continuation of it, continue to say enumeration, see the following definition

Enum Trainstatus {

Case OnTime

Case Delay (INT)//with associated values

}

var mytrainstatus = Trainstatus.delay (10)

Match objects with switch

Switch mytrainstatus{

Case. OnTime:

println ("Train is OnTime")

Case. Delay (Let minutes):

println ("Train delays \ (minutes) minutes")

}

The matching method is sequential, the above first match to delay and then to the inside of the minutes assignment, OK below I will demonstrate interval matching.

Switch mytrainstatus{

Case. ontime://Match on time

println ("Train is OnTime")

Case. Delay (1...5)://Match 1 to 5

println ("Train delays less than five minutes")

Case. Delay (6...10)://Match 6 to 10

println ("Train delays between six and ten minutes")

Case. Delay (_)://Match other, inside is underline

println ("Train delays more than ten minutes")

}

SWIFT Enumeration (2)