UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake(50, 100, 100, 100)];
NSMutableArray * animateArray = [[NSMutableArray alloc]initWithCapacity:20];
//加载图片
[animateArray addObject:[UIImage imageNamed:@"tu01"]];
[animateArray addObject:[UIImage imageNamed:@"tu02"]];
imageView.animationImages = animateArray;
[imageView startAnimating];
[self.view addSubview:imageView];