73 lines
1.3 KiB
Swift
73 lines
1.3 KiB
Swift
import UIKit
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//class Animal {
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// func speak() {
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// print("Animal speak")
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// }
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// subscript(index: Int) -> Int {
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// return index
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// }
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//}
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//
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//var anim: Animal
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//anim = Animal()
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//anim.speak()
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//print(anim[6])
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//
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//class Cat: Animal {
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// override func speak() {
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// print("Cat speak")
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// }
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//
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// override subscript(index: Int) -> Int {
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// return super[index] + 1
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// }
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//}
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//
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//var cat = Cat()
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//cat.speak()
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//print(cat[6])
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class Animal {
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class func speak() {
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print("Animal speak")
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}
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static subscript(index: Int) -> Int {
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return index
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}
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}
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class Cat: Animal {
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override class func speak() {
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super.speak()
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print("Cat speak")
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}
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}
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class Circle {
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static var radius: Int = 0
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class var diameter: Int {
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set {
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print("Circle setDiameter")
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radius = newValue / 2
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}
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get {
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print("Circle getDiameter")
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return radius * 2
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}
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}
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}
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class SubCircle: Circle {
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override class var diameter: Int {
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set {
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print("SubCircle setDiameter")
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super.diameter = newValue > 0 ? newValue : 0
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}
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get {
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print("SubCircle getDiameter")
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return super.diameter
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}
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}
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}
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