swift-08-the number of occurrences of a key-value pair of child statistics characters in a string

//

Main.swift

12-

//

Created by Wanghy on 15/8/9.

//Copyright (c) years Wanghy. All rights reserved.

//

// has a string that counts the number of occurrences of each character

// train of thought one: utilize two for Looping for nesting

//

var array = ["1","2","4","4", "2" , "4" , "5" , "1" ]

// Idea two , use a dictionary to do. Walk through it again

// definition Dian

var dic:[String:Int] = [:

for v inch Array

{

if (dic[v]! =nil)

{dic[v]!++}

Else {dic[v]=1}

}

for (Z,J) inch DiC

{

println ("\(z) appears in this array \ (J) times ")

}

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

swift-08-the number of occurrences of a key-value pair of child statistics characters in a string