UIView *view=[[UIView alloc] initWithFrame:CGRectMake(50, 50, 100, 100)];    view.backgroundColor=[UIColor redColor];    view.tag=10;    [self.window addSubview:view];        UIButton *button=[UIButton buttonWithType:UIButtonTypeRoundedRect];    button.frame=CGRectMake(200, 200, 50, 50);    [button setTitle:@"改变" forState:UIControlStateNormal];    [button addTarget:self action:@selector(changeViewScale) forControlEvents:UIControlEventTouchUpInside];    [self.window addSubview:button];        UIButton *translateButton=[UIButton buttonWithType:UIButtonTypeSystem];    translateButton.frame=CGRectMake(50,200, 50, 50);    [translateButton setTitle:@"移动" forState:UIControlStateNormal];    [translateButton addTarget:self action:@selector(changeViewTransalte) forControlEvents:UIControlEventTouchUpInside];    [self.window addSubview:translateButton];        UIButton *rotateButton=[UIButton buttonWithType:UIButtonTypeRoundedRect];    rotateButton.frame=CGRectMake(100, 200, 50, 50);    [rotateButton setTitle:@"旋转" forState:UIControlStateNormal];    [rotateButton addTarget:self action:@selector(changeViewRotate) forControlEvents:UIControlEventTouchUpInside];    [self.window addSubview:rotateButton];         [self.window makeKeyAndVisible];

-(void) changeViewScale{    UIView *view =[self.window viewWithTag:10];    view.transform=CGAffineTransformScale(view.transform, 0.8, 0.8);}-(void) changeViewTransalte{    UIView *view=[self.window viewWithTag:10];    view.transform=CGAffineTransformTranslate(view.transform, 10,0);}-(void) changeViewRotate{    UIView   *view=[self.window viewWithTag:10];    view.transform=CGAffineTransformRotate(view.transform, 0.33);}