swift -- Tuple 元组 Dictionary

// 定义一个空的Dictionary

var dict1 = Dictionary<Int, String>()

var dict2:Dictionary<Int, String> = [:]

var dict3 = [:]

// 定义一个空的Tuple

var tuple1: () = ()

var tuple2:(Int, String) = (5, "As god name")

let tuple1 = ("As god name", "2015/08/08", true, 16) // 定义元组

let tuple3 = (name: "As god name", time: "08/08", bool: true, number: 10) // 定义元组

let login: (Bool, String) = (true, "慕课网") // 定义元组

let tuple2 = ("program", "swift")

let (name, time, isBool, number) = tuple1

name

time

isBool

number

tuple1.0

tuple1.1

tuple1.2

tuple1.3

// Dictionary

var dictionary = [1:"A", 2:"Swift", 3:"ios"]

var dictionary2:[Int:String] = [9:"Hello", 10:"dingding"]

var dictionary3:Dictionary<String, String> = ["搜索引擎" : "Google", "新闻网站" : "网易新闻"]

tuple3.name

tuple3.time

tuple3.bool

tuple3.number

var dict1 = ["program" : "swift", "study" : "ios", "address" : "ShangHai"]

var dict2:[Int:String] = [10:"慕课网", 11:"百度", 15:"Google"]

var dict3:Dictionary<String, String> = ["学习网站" : "慕课网", "培训机构" : "传智播客", "所在地" : "北京"]

dict1["hobby"] = "sport"

dict1

dict1.removeValueForKey("address")

dict1

dict2.removeValueForKey(10)

dict2

for (key, value) in dict2{

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

}

dict2.keys

dict2.values

dict2

var dict1:[String:String] = ["ding":"dingding", "xing":"xingxing", "yu":"yuyuyu"]

for key in dict1.keys{

println(key)

}

for value in dict1.values{

println(value)

}

Array(dict1.keys)

[String](dict1.keys)

[String](dict1.values)

Array(dict1.values)

let colors = [

"Air Force Blue" : (red:93, green:138, blue:168),

"Bittersweel" : (red:254, green:111, blue:94)

]

let base = 2

let power = 10

var result = 1

for _ in 1...power{

result = base*result

}

result