摘要：
参考：http://www.cnblogs.com/minglz/archive/2012/11/27/2788343.html（1）@interface YYWViewController : UIViewController <UIActionSheetDelegate>（2）- (IBAction)btnAlert:(id)sender { UIActionSheet * actionSheet = [[UIActionSheetalloc] initWithTitle:@"Are you sure?" delegate:... 阅读全文