swift NSMutableArray 排序

1代码

//
//  main.swift
//  NSArrayDemo
//
//  Created by 赵超 on 14-6-22.
//  Copyright (c) 2014年 赵超. All rights reserved.
//

import Foundation


//创建NSArray
var array:NSArray=NSArray(object:"0")

//创建NSMutableArray
var arrays:NSMutableArray=NSMutableArray()

//增加数据
arrays.addObject("1")
arrays.addObject("2")

arrays.insertObject("99",atIndex:1)

arrays.addObjectsFromArray(array)


//遍历
println("排序前：")
for b in arrays{
    print(b)
    print(" ")
}


//排序
arrays.sortUsingComparator(
    {
    (s1:AnyObject!,s2:AnyObject!)->NSComparisonResult in
    var str1=s1 as String
    var str2=s2 as String
    if str1<str2{
        return NSComparisonResult.OrderedAscending
    }else{
        return NSComparisonResult.OrderedDescending
    }
    
})


//遍历
println("\n排序后：")
for b in arrays{
    print(b)
    print(" ")
}

2.结果

排序前：
1 99 2 0 
排序后：
0 1 2 99 Program ended with exit code: 0