UIImage *img1=[UIImage imageNamed:@"1.JPG"];

    UIImage *img2=[UIImage imageNamed:@"2.JPG"];     UIImage *img3=[UIImage imageNamed:@"3.JPG"];     _imgview.animationImages=[NSArray arrayWithObjects:img1,img2,img3,img2, nil];     _imgview.animationDuration=0.6;     [_imgview startAnimating];//動畫開始     //停止[_imgview stopAnimating];