Swift3.0在集合類數據結構上的一些新變化總結

//創建大量相同元素的數組
//創建有10個String類型元素的數組，并且每個元素都為字符串"Hello"
//swift2.2
//var array3 = [String](count: 10, repeatedValue: "Hello")
//swift3.0
var array3 = [String](repeating: "Hello", count: 10)
//創建有10個Int類型元素的數組，且每個元素都為1
//swift2.2
//var array4 = Array(count: 10, repeatedValue: 1)
//swift3.0
var array4 = Array(repeating: 1, count: 10)

var array = [1,2,3,4,5,6,7,8,9]
//向數組中追加一組元素
//swift2.2
//array.appendContentsOf([11,12,13])
//swift3.0
array.append(contentsOf: [11,12,13])
//向數組中的某個位置插入一個元素
//swift2.2
//array.insert(0, atIndex: 0)
//swift3.0
array.insert(0, at: 0)
//向數組中的某個位置插入一組元素
//swift2.2
//array.insertContentsOf([-2,-1], at: 0)
//swift3.0
array.insert(contentsOf: [-2,-1], at: 0)
//移除數組中某個位置的元素
//swift2.2
//array.removeAtIndex(1)
//swift3.0
array.remove(at: 1)
//移除一個范圍內的元素
//swift2.2
//array.removeRange(0...2)
//swift3.0
array.removeSubrange(0...2)
//修改一個范圍內的元素
//swift2.2
//array.replaceRange(0...2, with: [0,1])
//swift3.0
array.replaceSubrange(0...2, with: [0,1])
//進行數組枚舉遍歷 將

//創建set集合
var set1:Set = [1,2,3,4]
//進行下標的移動
//獲取某個下標后一個元素
//swlft2.2
//set1[set1.startIndex.successor()]
//swift3.0
set1[set1.index(after: set1.startIndex)]
//獲取某個下標后幾位的元素
//swift2.2
//set1[set1.startIndex.advancedBy(3)]
//swift3.0
set1[set1.index(set1.startIndex, offsetBy: 3)]
//獲取集合中的最大值
//swift2.2
//set1.maxElement()
//swift3.0
set1.max()
//獲取集合中的最小值
//swift2.2
//set1.minElement()
//swift3.0
set1.min()
//移除集合中某個位置的元素
//swift2.2
//set1.removeAtIndex(set1.indexOf(3)!)
//swift3.0
set1.remove(at: set1.index(of: 3)!)
var set3:Set = [1,2,3,4]
var set4:Set = [1,2,5,6]
//返回交集 {1，2}
//swift2.2
//var setInter = set3.intersect(set4)
//swift3.0
var setInter = set3.intersection(set4)
//返回交集的補集{3，4，5，6}
//swift2.2
//var setEx = set3.exclusiveOr(set4)
//swift3.0
var setEx = set3.symmetricDifference(set4)

var set5:Set = [1,2]
var set6:Set = [2,3]
var set7:Set = [1,2,3]
var set8:Set = [1,2,3]
//判斷是否是某個集合的子集 set5是set7的子集 返回ture
//swift2.2
//set5.isSubsetOf(set7)
//swift3.0
set5.isSubset(of: set7)
//判斷是否是某個集合的超集 set7是set5的超集 返回ture
//swift2.2
//set7.isSupersetOf(set5)
//swift3.0
set7.isSuperset(of: set5)
//判斷是否是某個集合的真子集 set5是set7的真子集 返回ture
//swift2.2
//set5.isStrictSubsetOf(set7)
//swift3.0
set5.isStrictSubset(of: set7)
//判斷是否是某個集合的真超集 set7不是set8的真超集 返回false
//swift2.2
//set7.isStrictSupersetOf(set8)
//swift3.0
set7.isStrictSuperset(of: set8)

//通過鍵刪除某個鍵值對
//swift2.2
//dic1.removeValueForKey(1)
//swift3.0
dic1.removeValue(forKey: 1)