UIAlertView

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示"message:@"回答abcd" delegate:self cancelButtonTitle:@"取消"otherButtonTitles:@"确定", nil];

    [alert show];

    [alert release];

delegate 可设为nil 表示不响应事件 需按钮响应时必须要设置delegate 并实现下面方法；

- (void)alertView:(UIAlertView *)alertViewclickedButtonAtIndex:(NSInteger)buttonIndex

{

    if (buttonIndex == 1){

     响应内容

    }

}