继续学习tableview

问题:
新建一个tableview,在设置数据源时,如果不retain一下数组的话,就会崩溃:
array = [NSArray arrayWithObjects: @"1",@"2",@"3",@"4",@"5", nil];
[array retain];
报错信息:
 -[NSCFString objectAtIndex:]: unrecognized selector sent to instance 0x4b436d0
新建tableview最精简的代码:
- (void)viewDidLoad
{
    [super viewDidLoad];
    
    UITableView *tableView = [[UITableView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]
                                                          style:UITableViewStylePlain];
    
    tableView.delegate = self;
    tableView.dataSource = self;
    
    array = [NSArray arrayWithObjects: @"1",@"2",@"3",@"4",@"5", nil];
    [array retain];
    
    self.view = tableView;
    [tableView release];
 
}

http://www.codeios.com/thread-107-1-1.html

http://book.51cto.com/art/200904/117670.htm

http://www.cocoachina.com/iphonedev/sdk/2010/0126/388.html

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Heiti SC Light'}

http://c.gzl.name/archives/tag/uitableview

http://www.cocoachina.com/iphonedev/sdk/2010/1018/2201.html

http://developer.apple.com/library/ios/#documentation/userexperience/conceptual/TableView_iPhone/AboutTableViewsiPhone/AboutTableViewsiPhone.html

http://zcg9033586.blog.163.com/blog/static/175217310201112144729380/

http://www.cnblogs.com/Snowfun/archive/2011/05/14/2046338.html

http://www.cocoachina.com/bbs/simple/?t52979.html

http://hi.baidu.com/%B7%B6%BF%A1%D3%C2/blog/category/iphone%BF%AA%B7%A2%C0%FA%B3%CC