GCD多线程使用

- (void)showTaped
{
    /*
     dispatch_get_global_queue
     dispatch_get_main_queue
     dispatch_queue_create
     dispatch_get_current_queue
     dispatch_queue_get_label
     dispatch_set_target_queue
     dispatch_main
     */
    
    //卡UI
//    dispatch_async(dispatch_get_main_queue(), ^{
//        [self testRun1000W];
//    });
    
    
    //不卡UI
//    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
//        [self testRun1000W];
//    });
    
    
    //卡UI 已弃用
//    dispatch_async(dispatch_get_current_queue(), ^{
//        [self testRun1000W];
//    });
    
    
    //在主线程中不能调用此方法
//    dispatch_async(dispatch_main(), ^{
//        
//    });
    
    
    //卡，直接不打印
//    dispatch_sync(dispatch_get_main_queue(), ^{
//        [self testRun1000W];
//    });
    
    
//    //卡UI
//    dispatch_sync(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
//        [self testRun1000W];
//    });
    
    
    //并行 不卡UI
//    dispatch_queue_t searQuene = dispatch_queue_create("sear", DISPATCH_QUEUE_SERIAL);
//    dispatch_async(searQuene, ^{
//        [self testRun1000W];
//    });
//    //[searQuene release];
    
    //并行，卡UI
//    dispatch_sync(searQuene, ^{
//        [self testRun1000W];
//    });
//    
//    dispatch_release(searQuene);
    
    
    
    
    //串行，不卡UI
//    dispatch_queue_t connuQuene = dispatch_queue_create("con", DISPATCH_QUEUE_CONCURRENT);
////    dispatch_async(connuQuene, ^{
////        [self testRun1000W];
////    });
//    
//    //串行,卡UI
//    dispatch_sync(connuQuene, ^{
//        [self testRun1000W];
//    });
//    
//    dispatch_release(connuQuene);
    

    
}

- (void)testRun1000W
{
    for (int i = 0; i < 10000; i++) {
        NSLog(@"%d ",i);
    }
}