Kelas dan objek yang cepat
// define a class
class Bicycle {
// define two properties
var name = ""
var gears = 0
}
// create instance of Person
var bike1 = Bicycle()
// access properties and assign new values
bike1.gears = 11
bike1.name = "Mountain Bike"
print("Name: \(bike1.name), Gears: \( bike1.gears) ")
SAMER SAEID