Xcode 6 有個新玩意MyPlayground 好奇寶寶來試試看XDDDD 好像滿好玩的 變數形態用var 沒有用分號(;)做程式的結尾~ 寫程式真開心~哈哈哈哈哈 // Playground - noun: a place where people can play import UIKit var str = "Hello, playground" var msg = "Hello World!" var x = 2 var y = 3 var z = 4 var sum = x + y + z println ( msg ) println ( sum ) if ( sum >= 10 ) { println ( "sum >= 10" ) } else { println ( "sum < 10" ) }