//点击任何处，出现提示框-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    [self twoBtnClicked];}- (void)twoBtnClicked{    DXAlertView *alert = [[DXAlertView alloc] initWithTitle:@"Congratulations" contentText:@"You have bought something" leftButtonTitle:@"Ok" rightButtonTitle:@"Fine"];    [alert show];    alert.leftBlock = ^() {        NSLog(@"left button clicked");    };    alert.rightBlock = ^() {        NSLog(@"right button clicked");    };    alert.dismissBlock = ^() {        NSLog(@"Do something interesting after dismiss block");    };}- (void)OneBtnClicked{    DXAlertView *alert = [[DXAlertView alloc] initWithTitle:@"Congratulations" contentText:@"You have bought something" leftButtonTitle:nil rightButtonTitle:@"Fine"];    [alert show];    alert.rightBlock = ^() {        NSLog(@"right button clicked");    };    alert.dismissBlock = ^() {        NSLog(@"Do something interesting after dismiss block");    };}