编辑代码

//count方法计算数组元素个数
let array1:[Int] = [1,2,3,4,5,]
print(array1)
print("输出数组元素个数为:\(array1.count)")

var names:[String] = ["one","罗良夫","杨小可"]
print(names)

let array2:Array<Double> = [1,2,3,4,5,]
print(array2)

//定义数组元素为元组
let array3  = [(1,"杨小可"),(2,"two")]
print(array3)

//as[Any]表示数组可以为任意类型
var array4 = [1,2,3,4,"Hello"]as[Any]
print(array4)

//用insert程序接口将一个有值元素定位插入一个已知数组中
array4.insert(8,at:0)
print(array4)

//字典
var score:Dictionary  = ["张三":96,"杨小可":22]
print(score)

for(name,score) in score{
    print("\(name):\(score)")
}