【代码笔记】iOS-实现网络图片的异步加载和缓存

代码：

- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view.        self.title=@"EGOImageViewDemo";        //实现网络图片的异步加载和缓存    EGOImageView *imageView = [[EGOImageView alloc] initWithPlaceholderImage:[UIImage imageNamed:@"1.jpg"]];    imageView.imageURL = [NSURL URLWithString:@"http://f.dalang.gov.cn/uppic/2011-7-16/2011071610283352633.jpg"];    imageView.frame = CGRectMake(10,100,100,100);    [self.view addSubview:imageView];}