Swift 3中带有上限的种子随机数？

Question

有没有办法播种随机数生成器并在Swift 3中指定上限？

Answer 1

Swift中最方便的随机数生成器驻留在GameKit中。这会生成-10到10（含）之间的随机整数：

import GameKit
let source = GKARC4RandomSource(seed: Data(bytes: [42]))
let random = GKRandomDistribution(randomSource: source, lowestValue: -10, highestValue: 10)

for _ in 0..<10 {
    print(random.nextInt())
}