////  main.m//  Hello////  Created by lishujun on 14-8-28.//  Copyright (c) 2014年 lishujun. All rights reserved.//#import <UIKit/UIKit.h>// 视图控制器对象@interface HelloWorldViewController : UIViewController<UITableViewDataSource, UITableViewDelegate>{    NSArray *array;    UITableView *tableView;    //不用@property声明，就不能用self进行引用? 有什么差异，我得弄清楚}@end@implementation HelloWorldViewController-(HelloWorldViewController *) init{    array = [[NSArray alloc]initWithObjects:@"oops", @"hello", @"world", nil];    return self;}-(void) loadView{    // 创建视图对象    UIView *contentView = [[UIView alloc]initWithFrame:[[UIScreen mainScreen] applicationFrame]];    contentView.backgroundColor = [UIColor lightGrayColor];    self.view = contentView;        // 创建tableView    tableView = [[UITableView alloc]initWithFrame:[[UIScreen mainScreen] applicationFrame]];    [tableView setDataSource:self];    [tableView setDelegate:self];        // tableView加入到内容视图    [contentView addSubview:tableView];}// --------DataSource接口必须实现的方法，用于填充表格------------(NSInteger) numberOfSectionsInTableView:(UITableView *)tableView{    return 1; //设定列表分区个数}-(NSInteger) tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{    return [array count]; //设定列表长度}-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    // 生成列表单元（尽可能复用已有单元）    static NSString *simpleTableIdentifer = @"SimpleTableIdentifer";        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifer];    if (cell == nil) {        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifer];    }    cell.textLabel.text = array[indexPath.row];    return cell;}// ----------实现Delegate接口的方法,用于操作----------------(NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath{    // 行选中之前的事件，下面代码实现是实现取消第一行的选择，即不允许选择    if(indexPath.row == 0)    {        return nil;    }    else    {        return indexPath;    }}-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{    //行选中事件    NSString *rowValue =http://www.mamicode.com/ array[indexPath.row];    [tableView deselectRowAtIndexPath:indexPath animated:YES]; //取消选中状态    NSLog(@"%@", rowValue);    }@end// 委托对象@interface HelloWorldAppDelegate : NSObject <UIApplicationDelegate>{    IBOutlet UIWindow *window;}@property (nonatomic, retain) UIWindow *window;@end@implementation HelloWorldAppDelegate@synthesize window;-(void) applicationDidFinishLaunching:(UIApplication *)application{    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen]bounds]];    HelloWorldViewController *viewController = [[HelloWorldViewController alloc]init];    self.window.rootViewController = viewController;    [self.window makeKeyAndVisible];}@end// 程序入口int main(int argc, char * argv[]){    @autoreleasepool {        return UIApplicationMain(argc, argv, nil, @"HelloWorldAppDelegate");    }}