swift print

print("Hello World")
//printing a value
let num = 5
print(num)
print("a num: " + num) //concatenation
print("a num: \(num)") //interpolation
print("Hello World")
print("Hello Again") 
//prints Hello World, and then Hello Again on a new line
//Hello World
//Hello Again
print("Hello World", terminator="")
print("Hello Again")
//prints Hello World and then Hello Again on the same line
//Hello WorldHello Again
print(123.45)
//prints 123.45
var message: String = "Hello"
print(message)
//prints Hellovar str1 = "Hello, world"
print(str1)