集合之间的相互转换
2016-12-16 09:45 supper_Ho 阅读(370) 评论(0) 编辑 收藏 举报//
// main.m
// 11-集合相互转换
//
// Created by apple on 14-3-21.
// Copyright (c) 2014年 apple. All rights reserved.
//
#import <Foundation/Foundation.h>
int main(int argc, const char * argv[])
{
@autoreleasepool {
//1.NSArray 转换成 NSMutableArray
NSArray * array = @[@"one",@"two",@"three"];
NSMutableArray * muArray = [NSMutableArray arrayWithArray:array];
NSLog(@"muarray %@",muArray);
//2.NSDictonary 转换成 NSMutableDictionary
NSDictionary * dic = @{@"one":@"1",@"two":@"2"};
NSMutableDictionary * muDic = [NSMutableDictionary dictionaryWithDictionary:dic];
NSLog(@"mudic %@ ",muDic);
//3.NSset 转换成 NSMutableSet
NSSet * set = [[NSSet alloc] initWithObjects:@"one",@"two", nil];
NSMutableSet *muSet = [NSMutableSet setWithSet:set];
NSLog(@"muSet %@",muSet);
//4.NSArray 转换成NSSet
NSMutableSet * muSet2 = [NSMutableSet setWithArray:array];
NSLog(@"muSet2 %@",muSet2);
//5.NSDictionary 转化成NSArray
NSArray * allkeys = [dic allKeys];
NSLog(@"allkeys %@",allkeys);
NSArray * allValues = [dic allValues];
NSLog(@"allValues %@",allValues);
//6.字符串转换成数组
NSString * str = @"www.itacast.cn";
NSArray * strArray = [str componentsSeparatedByString:@"."];
NSLog(@"strArray %@",strArray);
}
return 0;
}