为什么80%的码农都做不了架构师？>>> 
1.实现手机震动效果，代码如下：
需要加入AudioToolbox.framework框架，并倒入头文件#import
- (void)viewDidLoad
{
[super viewDidLoad];
UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[btn setTitle:@"点击" forState:UIControlStateNormal];
btn.frame = CGRectMake(100, 100, 200, 50);
[btn addTarget:self action:@selector(shake:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)shake:(id)sender
{
AudioServicesPlayAlertSound(kSystemSoundID_Vibrate); //kSystemSoundID_Vibrate系统震动
}
注意：ipod是不支持震动的。