类的定义及使用

import Foundation

class TV{

    var keyCount="12"

    var keyName="power"

    func openTV()->String{

        return "success"

    }

}

var iTY = TV()

var count=iTY.keyCount

println(count)

println(iTY.openTV())

var youTV=iTY;

youTV.keyName="close"

println(youTV.keyName)

if(iTY===youTV){

    println(true)}