iOS 按钮跳转页面

ViewController.h中定义按钮 btn1；

@property (weak, nonatomic) IBOutlet UIButton *btn1;

ViewController.m中实现按下按钮跳转到：qqqViewController；

- (IBAction)btn1:(id)sender

{

    qqqViewController *qqqv = [[qqqViewController alloc] init];

    [self presentModalViewController:qqqv animated:NO];

    NSLog(@"23123");

}

qqqViewController.m 中添加按钮btnback 实现跳转回ViewController

- (IBAction)btnback:(id)sender {

    [self dismissModalViewControllerAnimated:YES];

}