swift数组

import UIKit

var arrary1:[Int]
var array2:Array<Int>
//创建空树组
arrary1 = []
array2 = Array()
arrary1 = [1,2,3]
array2 = Array(arrayLiteral: 1,2,3)

var array3 = [String](repeating: "Hello", count: 10)
var array4 = Array(repeating: 1, count: 10)
var array5 = [1,2,3]+[4,5,6]//[1,2,3,4,5,6]
var array = [1,2,3,4,5,6,7,8,9]
array.count
if array.isEmpty{
    
    
    print("树组为空")
}
var a = array[0]
var subArray = array[0...3]
var b = array.first
var c = array.last
array[0] = 0
print(array)
array[0...3] = [2,3,4,5]
print(array)
array.append(10)
array.append(contentsOf: [11,12,13,14])
array.insert(15, at: 1)
array.insert(contentsOf: [-2,-1], at: 0)
array.remove(at: 1)
array.removeFirst()
array.removeLast()
array.removeFirst(2)
array.removeLast(2)
array.removeSubrange(0...2)
array.replaceSubrange(0...2, with: [0,1])
array.removeAll()
if array.contains(1) {
    
    
    print(true)
}

let arrayLet = [0,1,2,3,4]
let arrayLet2 = [(1,2),(2,3),(3,4)]
for item in arrayLet{
    
    
    print(item)
}
for item in arrayLet.enumerated(){
    
    
    print(item)
}
for index in arrayLet2.indices{
    
    
    print(arrayLet2[index])
}
var arraySort = [1,3,5,6,7]
//arraySort = arraySort.sorted(isOrderedBefore:>)
arraySort.max()
arraySort.min()