Swift3.0 数组和字典的排序问题

简单的实现swift中字典和数组内部排序问题，不用再单独写一个算法来实现排序了，简单快捷~

1.数组元素从小到大排序（根据元素数值大小）

let arrNumber = ["2","4","9","1","3"]

let sortedArrNumber = arrNumber.sorted{ (k1:String, k2:String) -> Boolin
return Int(k1)!
}

print(sortedArrNumber)//["1", "2", "3", "4", "9”]

2.数组元素从小到大排序（根据字母）

let arrLetter = ["g","a","ij","if","d"]

let sortedArrLetter =arrLetter.sorted{ (k1, k2) -> Boolin
return k1
}

print(sortedArrLetter)//["a", "d", "g", "if", "ij"]

3.字典键值对排序(根据key数值大小排序)

let dicKey = [
"6":"six",
"10":"ten",
"8":"eight",
"0":"zero",
"5":"five"
]

let sortedDicKey = dicKey.sorted{ (k1, k2) ->Boolin
return Int(k1.key)!
}

print(sortedDicKey)//[("0", "zero"), ("5", "five"), ("6", "six"), ("8", "eight"), ("10", "ten")]

4.取字典中的键排序

let sortedKeys = dicKey.keys.sorted{ (k1, k2) ->Boolin
return Int(k1)!
}

print(sortedKeys)//["0", "5", "6", "8", "10"]