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