3.0 //初始化數(shù)組的大小和初始值
var allZeros = [Int](repeatElement(0, count: 5))
var empty6 = Array(repeating: "4.5", count: 5);
var allZeros = [Int](repeatElement(0, count: 5))
var empty6 = Array(repeating: "4.5", count: 5);
2017-02-01
skillsOfA.union(skillsOfB)
skillsOfA.formUnion(skillsOfB)
skillsOfA.intersection(skillsOfB)
skillsOfA.formIntersection(skillsOfB)
skillsOfA.formUnion(skillsOfB)
skillsOfA.intersection(skillsOfB)
skillsOfA.formIntersection(skillsOfB)
2017-01-13
var allZeros = [Int](repeatElement(0, count: 5))
2017-01-12
最贊回答 / 哆啦A夢_0001
func toBinary( num:Int)->String{? ? var num = num? ? var res = ""? ? repeat{? ? ? ? res = String(num%2) + res? ? ? ? num /= 2 ? //2需要是個Int類型? ? }while num != 0? ? // while后面沒有大括號? ? return res}