랜덤값을 중복되지 않게 추출

Programming/Swift

평생초보 2017. 9. 12. 16:54

import UIKit

var totalCount = 18

var gemCard = 1

var ranArray = [1,2,3,4,5,6,7,8,9,10,11,12,13]

while(totalCount>0) {

let randomIndex = Int(arc4random_uniform(UInt32(ranArray.count)))

print(ranArray[randomIndex])

ranArray.remove(at: randomIndex)

totalCount-=2

}