swift（三）字典数组操作

//1。数组的概念和定义

var array = [,,,]

var array1:Array = [,,,]

var array2:Array<Int> = [,,,];

var array3:[Int] = [,,];

var array4:[Double] = [2.2,,]

var array5:[String] = ["a","b","c"]

println(array)

//数组可以方不同类型

var array6:[Any] = ["a",,];

//数组元素访问和在数组中插入删除

var array7 = ["a","b","c"];

array7.append("f")

array7.insert("", atIndex: )

println(array7)

//var array9 = [1,2,3,4,5]

//var slice: Slice<Int> = [2,3,5]

//slice = array9[0...3]

//array9 = Array(slice)

//slice = Slice(array9)

//println(slice)

//range

var range: Range<Int> = Range(start: , end: )

var range1 = ...

var range2 = ..<

println(range)

println(range1)

println(range2)

//数组的批量操作

var array10 = [,,,,]

//array10[0...1] = [9,9,9,9,9]

array10.replaceRange(Range(start: , end: ), with: [,,,,])

array10 += []

array10.append()

array10 += [,,]

//array10 += slice

array10 += array10[...]

println(array10)

//数组的便利

for elm in array10{

    println(elm)

}

for (index,value) in enumerate(array10)

{

    println("index:\(index) = \(value)")

}

//字典的概念和定义

var dic = [:""]

var dic2 :Dictionary<String,Int> = ["adf":]

var dic3 :Dictionary<String,String> = ["":""]

println(dic)

//字典的操作

var dict = ["apple":"苹果","banana":"香蕉"]

dict["apple"] = "橘子"

if let org = dict.updateValue("啦啦", forKey: "apple")

{

    println(dict["apple"])

     println(org)

}

//println(dict["apple"])

dict["green"] = "颜色"

println(dict)

dict.removeValueForKey("apple1")

//dict.removeAll(keepCapacity: false)

println(dict)

//字典的便利

for (key,value) in dict

{

    println("\(key) : \(value)")

}

for key in dict.keys

{

    println("\(key)")

}

for key in dict.values

{

    println("\(key)")

}