import UIKit

var greetings = "Sali"
var myName = "Reinhard"

let helloWorld = "\(greetings), \(myName)"


print (helloWorld)

Weitere Infos

https://developer.apple.com/documentation/swift/1541053-print

https://stackoverflow.com/questions/24034174/how-do-i-concatenate-strings-in-swift

let greeting = "Hello..." 
  greeting: String = "Hello..."

print("\(greeting) Reiny!")
  Hello... Reiny!

 

https://developer.apple.com/documentation/swift/codable