Arrays

var array = ["A","B","C","D"]

• 一個數組只能存儲特定類型的數據
• 所存數據不一定是類的對象，也可以是基本數據類型

Array Type

• [String]
• Array<String>

聲明數組的方法:

//聲明數組的三種方式
var array1 = ["a","b","c","d","e"]
var array2:[String] = ["a","b","c","d","e"]
var array3:Array<String> = ["a","b","c","d","e"]

聲明空的數組：

//數組的初始化
var array4 = [Int]()
var str4 = [String]()
var array5 = Array<String>()

數組的操作：

//拼接數組
array4 = Array<Int>(count: 10, repeatedValue: 0)//[0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
var array6 = [1,2,3]
var array7 = array4 + array6//[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3]
//遍歷數組
for index in 0..<array.count
{
    println(array[index])
}
for item in array{
    println(item)
}