改动屏幕的旋转方向

更改屏幕的旋转方向

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
??? // Overriden to allow any orientation.
??? return (interfaceOrientation==UIInterfaceOrientationLandscapeLeft)||(interfaceOrientation==UIInterfaceOrientationLandscapeRight);
}