有没有办法撤消requireGestureRecognizerToFail。我像这样使用requireGestureRecognizerToFail在两个UIGestureRecognizer之间建立依赖关系。UITapGestureRecognizer*tgr1=[UITapGestureRecognizeralloc]initWithTarget...];UITapGestureRecognizer*tgr2=[UITapGestureRecognizeralloc]initWithTarget...];[tgr1requireGestureRecognizerToFail:tgr