//转场动画1--头尾
-(void)TransitionAnimation1{
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.5];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view cache:YES];
[UIView commitAnimations];
} //转场动画-block
-(void)TransitionAnimation2{
[UIView transitionWithView:_lastview duration:0.5 options:UIViewAnimationOptionTransitionCurlUp animations:^{ } completion:^(BOOL finished) { }];
}