摘要: - (void)viewDidLoad{ [super viewDidLoad]; dispatch_sync(dispatch_get_main_queue(), ^{NSLog(@"111");}); NSLog(@"222");}此时主线程已是死锁状态,不会打印222和111... 阅读全文
posted @ 2015-06-12 10:49 MingFung_Liu 阅读(206) 评论(0) 推荐(0) 编辑