#import <UIKit/UIKit.h>
#import "JSONKit.h"@interface MainViewController : UIViewController
{UIButton *btn;
}
@end

//
//  MainViewController.m
//  testapple
//
//  Created by kiri on 12-5-8.
//  Copyright (c) 2012年 __MyCompanyName__. All rights reserved.
//#import "MainViewController.h"@implementation MainViewController#pragma mark - View lifecycle
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView
{[super loadView];self.navigationController.navigationBar.hidden = NO;self.title = @"测试";btn = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 100, 40)];[btn setBackgroundImage:[UIImage imageNamed:@"btnoff.png"] forState:UIControlStateNormal];[btn setBackgroundImage:[UIImage imageNamed:@"btnon.png"] forState:UIControlStateHighlighted];[btn addTarget:self action:@selector(onbuttonclick) forControlEvents:UIControlEventTouchUpInside];[self.view addSubview:btn];
}// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{[super viewDidLoad];
}-(void)onbuttonclick
{NSLog(@"onbuttonclick");NSString *jsonstring = @"[{\"age\":18,\"book\":{\"price\":23.2,\"title\":\"booooooook1\"},\"name\":\"samyou\"},{\"age\":22,\"book\":{\"price\":21,\"title\":\"booooooook2\"},\"name\":\"samsam\"}]";NSData *data = [jsonstring dataUsingEncoding:NSUTF8StringEncoding];NSArray *arr = (NSArray *)[data mutableObjectFromJSONData];NSLog(@"count=%d",arr.count);for(int i=0;i<arr.count;i++){NSDictionary *people = [arr objectAtIndex:i];NSString *name = [people objectForKey:@"name"];NSNumber *age = [people objectForKey:@"age"];NSLog(@"person withname=%@,age = %d",name,[age intValue]);NSDictionary *book = [people objectForKey:@"book"];NSString *bookname = [book objectForKey:@"title"];NSNumber *price = [book objectForKey:@"price"];NSLog(@"book with title=%@, price=%f",bookname,[price doubleValue]);}}-(void)dealloc
{[btn release];[super dealloc];
}@end