1.主队列
1.1同步函数 + 主队列
/**
* 同步函数 + 主队列
*/
- (void)syncMain{
NSLog(@"syncMain ----- begin");
// 1.获得主队列
dispatch_queue_t queue = dispatch_get_main_queue();
// 2.将任务加入队列
dispatch_sync(queue, ^{
NSLog(@"1-----%@", [NSThread currentThread]);
});
dispatch_sync(queue, ^{
NSLog(@"2-----%@", [NSThread currentThread]);
});
dispatch_sync(queue, ^{
NSLog(@"3-----%@", [NSThread currentThread]);
});
NSLog(@"syncMain ----- end");
}
//2016-08-09 15:45:05.509 07-GCD的基本使用[39079:607589] syncMain ----- begin
同步函数 任务放入主队列 会阻塞主队列
1.2异步函数 + 主队列
/**
* 异步函数 + 主队列 = 只在主线程中执行任务
*/
- (void)asyncMain{
NSLog(@"asyncMain ----- begin");
// 1.获得主队列
dispatch_queue_t queue = dispatch_get_main_queue();
// 2.将任务加入队列
dispatch_async(queue, ^{
NSLog(@"1-----%@", [NSThread currentThread]);
});
dispatch_async(queue, ^{
NSLog(@"2-----%@", [NSThread currentThread]);
});
dispatch_async(queue, ^{
NSLog(@"3-----%@", [NSThread currentThread]);
});
NSLog(@"asyncMain ----- end");
}
//2016-08-09 15:46:50.275 07-GCD的基本使用[39165:609117] asyncMain ----- begin
//2016-08-09 15:46:50.276 07-GCD的基本使用[39165:609117] asyncMain ----- end
//2016-08-09 15:46:50.276 07-GCD的基本使用[39165:609117] 1-----<NSThread: 0x7fe740d038e0>{number = 1, name = main}
//2016-08-09 15:46:50.276 07-GCD的基本使用[39165:609117] 2-----<NSThread: 0x7fe740d038e0>{number = 1, name = main}
//2016-08-09 15:46:50.276 07-GCD的基本使用[39165:609117] 3-----<NSThread: 0x7fe740d038e0>{number = 1, name = main}
异步函数 任务放到主队列 不会
阻塞主队列
2.自创建串行队列
2.1同步函数 + 自创建串行队列
/**
* 同步函数 + 串行队列 = 不会开启新的线程,在当前线程执行任务。任务是串行的,执行完一个任务,再执行下一个任务
*/
- (void)syncSerial{
NSLog(@"syncSerial ----- begin");
// 1.创建串行队列
dispatch_queue_t queue = dispatch_queue_create("com.solozyx.queue", DISPATCH_QUEUE_SERIAL);
// 2.将任务加入队列
dispatch_sync(queue, ^{
NSLog(@"1-----%@", [NSThread currentThread]);
});
dispatch_sync(queue, ^{
NSLog(@"2-----%@", [NSThread currentThread]);
});
dispatch_sync(queue, ^{
NSLog(@"3-----%@", [NSThread currentThread]);
});
NSLog(@"syncSerial ----- end");
}
//2016-08-09 15:49:30.233 07-GCD的基本使用[39301:611030] syncSerial ----- begin
//2016-08-09 15:49:30.234 07-GCD的基本使用[39301:611030] 1-----<NSThread: 0x7fe719e09fe0>{number = 1, name = main}
//2016-08-09 15:49:30.234 07-GCD的基本使用[39301:611030] 2-----<NSThread: 0x7fe719e09fe0>{number = 1, name = main}
//2016-08-09 15:49:30.234 07-GCD的基本使用[39301:611030] 3-----<NSThread: 0x7fe719e09fe0>{number = 1, name = main}
//2016-08-09 15:49:30.234 07-GCD的基本使用[39301:611030] syncSerial ----- end
同步函数 在自创建串行队列 串行执行任务
2.2异步函数 + 自创建串行队列
/**
* 异步函数 + 串行队列 = 会开启新的线程,但是任务是串行的,执行完一个任务,再执行下一个任务
*/
- (void)asyncSerial
{
NSLog(@"asyncSerial ----- begin");
// 1.创建串行队列
dispatch_queue_t queue = dispatch_queue_create("com.solozyx.queue", DISPATCH_QUEUE_SERIAL);
//dispatch_queue_t queue = dispatch_queue_create("com.solozyx.queue", NULL);
// 2.将任务加入队列
dispatch_async(queue, ^{
NSLog(@"1-----%@", [NSThread currentThread]);
});
dispatch_async(queue, ^{
NSLog(@"2-----%@", [NSThread currentThread]);
});
dispatch_async(queue, ^{
NSLog(@"3-----%@", [NSThread currentThread]);
});
NSLog(@"asyncSerial ----- end");
}
//2016-08-09 15:52:39.640 07-GCD的基本使用[39434:613485] asyncSerial ----- begin
//2016-08-09 15:52:39.641 07-GCD的基本使用[39434:613485] asyncSerial ----- end
//2016-08-09 15:52:39.641 07-GCD的基本使用[39434:614291] 1-----<NSThread: 0x7fb5d0f09620>{number = 2, name = (null)}
//2016-08-09 15:52:39.641 07-GCD的基本使用[39434:614291] 2-----<NSThread: 0x7fb5d0f09620>{number = 2, name = (null)}
//2016-08-09 15:52:39.642 07-GCD的基本使用[39434:614291] 3-----<NSThread: 0x7fb5d0f09620>{number = 2, name = (null)}
异步函数开启新线程 串行执行任务
3.全局并发队列
3.1同步函数 + 全局并发队列
- (void)syncConcurrent
{
NSLog(@"syncConcurrent ----- begin");
// 1.获得全局的并发队列
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
// 2.将任务加入队列
dispatch_sync(queue, ^{
for (NSInteger i = 0; i<10; i++) {
NSLog(@"1-----%@", [NSThread currentThread]);
}
});
dispatch_sync(queue, ^{
for (NSInteger i = 0; i<10; i++) {
NSLog(@"2-----%@", [NSThread currentThread]);
}
});
dispatch_sync(queue, ^{
for (NSInteger i = 0; i<10; i++) {
NSLog(@"3-----%@", [NSThread currentThread]);
}
});
NSLog(@"syncConcurrent ----- end");
}
//2016-08-09 16:14:49.109 07-GCD的基本使用[40630:636346] syncConcurrent ----- begin
//2016-08-09 16:14:49.110 07-GCD的基本使用[40630:636346] 1-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.110 07-GCD的基本使用[40630:636346] 1-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.110 07-GCD的基本使用[40630:636346] 1-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.111 07-GCD的基本使用[40630:636346] 1-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.111 07-GCD的基本使用[40630:636346] 1-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.111 07-GCD的基本使用[40630:636346] 1-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.111 07-GCD的基本使用[40630:636346] 1-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.111 07-GCD的基本使用[40630:636346] 1-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.111 07-GCD的基本使用[40630:636346] 1-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.112 07-GCD的基本使用[40630:636346] 1-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.112 07-GCD的基本使用[40630:636346] 2-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.149 07-GCD的基本使用[40630:636346] 2-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.149 07-GCD的基本使用[40630:636346] 2-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.149 07-GCD的基本使用[40630:636346] 2-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.149 07-GCD的基本使用[40630:636346] 2-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.149 07-GCD的基本使用[40630:636346] 2-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.150 07-GCD的基本使用[40630:636346] 2-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.150 07-GCD的基本使用[40630:636346] 2-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.150 07-GCD的基本使用[40630:636346] 2-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.150 07-GCD的基本使用[40630:636346] 2-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.150 07-GCD的基本使用[40630:636346] 3-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.150 07-GCD的基本使用[40630:636346] 3-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.150 07-GCD的基本使用[40630:636346] 3-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.151 07-GCD的基本使用[40630:636346] 3-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.151 07-GCD的基本使用[40630:636346] 3-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.151 07-GCD的基本使用[40630:636346] 3-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.151 07-GCD的基本使用[40630:636346] 3-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.151 07-GCD的基本使用[40630:636346] 3-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.152 07-GCD的基本使用[40630:636346] 3-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.152 07-GCD的基本使用[40630:636346] 3-----<NSThread: 0x7ffd11e0a260>{number = 1, name = main}
//2016-08-09 16:14:49.152 07-GCD的基本使用[40630:636346] syncConcurrent ----- end
3.2异步函数 + 全局并发队列
/**
* 异步函数 + 并发队列 = 可以同时开启多条线程
*/
- (void)asyncConcurrent
{
NSLog(@"asyncConcurrent-----begin");
// 1.获得全局的并发队列
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
// 2.将任务加入队列
dispatch_async(queue, ^{
for (NSInteger i = 0; i<10; i++) {
NSLog(@"1-----%@", [NSThread currentThread]);
}
});
dispatch_async(queue, ^{
for (NSInteger i = 0; i<10; i++) {
NSLog(@"2-----%@", [NSThread currentThread]);
}
});
dispatch_async(queue, ^{
for (NSInteger i = 0; i<10; i++) {
NSLog(@"3-----%@", [NSThread currentThread]);
}
});
NSLog(@"asyncConcurrent-----end");
}
//2016-08-09 16:01:47.656 07-GCD的基本使用[39960:623708] asyncConcurrent-----begin
//2016-08-09 16:01:47.657 07-GCD的基本使用[39960:623708] asyncConcurrent-----end
//2016-08-09 16:01:47.657 07-GCD的基本使用[39960:623751] 1-----<NSThread: 0x7fe8c1c353b0>{number = 2, name = (null)}
//2016-08-09 16:01:47.657 07-GCD的基本使用[39960:623750] 2-----<NSThread: 0x7fe8c1c32010>{number = 3, name = (null)}
//2016-08-09 16:01:47.657 07-GCD的基本使用[39960:623749] 3-----<NSThread: 0x7fe8c1e1f790>{number = 4, name = (null)}
//2016-08-09 16:01:47.658 07-GCD的基本使用[39960:623751] 1-----<NSThread: 0x7fe8c1c353b0>{number = 2, name = (null)}
//2016-08-09 16:01:47.658 07-GCD的基本使用[39960:623750] 2-----<NSThread: 0x7fe8c1c32010>{number = 3, name = (null)}
//2016-08-09 16:01:47.659 07-GCD的基本使用[39960:623749] 3-----<NSThread: 0x7fe8c1e1f790>{number = 4, name = (null)}
//2016-08-09 16:01:47.659 07-GCD的基本使用[39960:623751] 1-----<NSThread: 0x7fe8c1c353b0>{number = 2, name = (null)}
//2016-08-09 16:01:47.660 07-GCD的基本使用[39960:623750] 2-----<NSThread: 0x7fe8c1c32010>{number = 3, name = (null)}
//2016-08-09 16:01:47.661 07-GCD的基本使用[39960:623749] 3-----<NSThread: 0x7fe8c1e1f790>{number = 4, name = (null)}
//2016-08-09 16:01:47.661 07-GCD的基本使用[39960:623751] 1-----<NSThread: 0x7fe8c1c353b0>{number = 2, name = (null)}
//2016-08-09 16:01:47.661 07-GCD的基本使用[39960:623750] 2-----<NSThread: 0x7fe8c1c32010>{number = 3, name = (null)}
//2016-08-09 16:01:47.695 07-GCD的基本使用[39960:623749] 3-----<NSThread: 0x7fe8c1e1f790>{number = 4, name = (null)}
//2016-08-09 16:01:47.695 07-GCD的基本使用[39960:623750] 2-----<NSThread: 0x7fe8c1c32010>{number = 3, name = (null)}
//2016-08-09 16:01:47.695 07-GCD的基本使用[39960:623751] 1-----<NSThread: 0x7fe8c1c353b0>{number = 2, name = (null)}
//2016-08-09 16:01:47.695 07-GCD的基本使用[39960:623749] 3-----<NSThread: 0x7fe8c1e1f790>{number = 4, name = (null)}
//2016-08-09 16:01:47.695 07-GCD的基本使用[39960:623750] 2-----<NSThread: 0x7fe8c1c32010>{number = 3, name = (null)}
//2016-08-09 16:01:47.695 07-GCD的基本使用[39960:623751] 1-----<NSThread: 0x7fe8c1c353b0>{number = 2, name = (null)}
//2016-08-09 16:01:47.695 07-GCD的基本使用[39960:623749] 3-----<NSThread: 0x7fe8c1e1f790>{number = 4, name = (null)}
//2016-08-09 16:01:47.695 07-GCD的基本使用[39960:623750] 2-----<NSThread: 0x7fe8c1c32010>{number = 3, name = (null)}
//2016-08-09 16:01:47.696 07-GCD的基本使用[39960:623751] 1-----<NSThread: 0x7fe8c1c353b0>{number = 2, name = (null)}
//2016-08-09 16:01:47.696 07-GCD的基本使用[39960:623749] 3-----<NSThread: 0x7fe8c1e1f790>{number = 4, name = (null)}
//2016-08-09 16:01:47.696 07-GCD的基本使用[39960:623750] 2-----<NSThread: 0x7fe8c1c32010>{number = 3, name = (null)}
//2016-08-09 16:01:47.696 07-GCD的基本使用[39960:623751] 1-----<NSThread: 0x7fe8c1c353b0>{number = 2, name = (null)}
//2016-08-09 16:01:47.696 07-GCD的基本使用[39960:623749] 3-----<NSThread: 0x7fe8c1e1f790>{number = 4, name = (null)}
//2016-08-09 16:01:47.696 07-GCD的基本使用[39960:623750] 2-----<NSThread: 0x7fe8c1c32010>{number = 3, name = (null)}
//2016-08-09 16:01:47.697 07-GCD的基本使用[39960:623751] 1-----<NSThread: 0x7fe8c1c353b0>{number = 2, name = (null)}
//2016-08-09 16:01:47.697 07-GCD的基本使用[39960:623749] 3-----<NSThread: 0x7fe8c1e1f790>{number = 4, name = (null)}
//2016-08-09 16:01:47.697 07-GCD的基本使用[39960:623750] 2-----<NSThread: 0x7fe8c1c32010>{number = 3, name = (null)}
//2016-08-09 16:01:47.697 07-GCD的基本使用[39960:623751] 1-----<NSThread: 0x7fe8c1c353b0>{number = 2, name = (null)}
//2016-08-09 16:01:47.698 07-GCD的基本使用[39960:623749] 3-----<NSThread: 0x7fe8c1e1f790>{number = 4, name = (null)}
4.自创建并发队列
4.1同步函数 + 自创建并发队列
- (void)syncConcurrent2
{
NSLog(@"syncConcurrent2 ----- begin");
// 1.自创建并发队列
dispatch_queue_t queue = dispatch_queue_create("com.solozyx.queue", DISPATCH_QUEUE_CONCURRENT);
// 2.将任务加入队列
dispatch_sync(queue, ^{
for (NSInteger i = 0; i<10; i++) {
NSLog(@"1-----%@", [NSThread currentThread]);
}
});
dispatch_sync(queue, ^{
for (NSInteger i = 0; i<10; i++) {
NSLog(@"2-----%@", [NSThread currentThread]);
}
});
dispatch_sync(queue, ^{
for (NSInteger i = 0; i<10; i++) {
NSLog(@"3-----%@", [NSThread currentThread]);
}
});
NSLog(@"syncConcurrent2 ----- end");
}
//2016-08-09 16:17:24.937 07-GCD的基本使用[40771:638780] syncConcurrent2 ----- begin
//2016-08-09 16:17:24.938 07-GCD的基本使用[40771:638780] 1-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.938 07-GCD的基本使用[40771:638780] 1-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.939 07-GCD的基本使用[40771:638780] 1-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.939 07-GCD的基本使用[40771:638780] 1-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.939 07-GCD的基本使用[40771:638780] 1-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.939 07-GCD的基本使用[40771:638780] 1-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.940 07-GCD的基本使用[40771:638780] 1-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.940 07-GCD的基本使用[40771:638780] 1-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.940 07-GCD的基本使用[40771:638780] 1-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.940 07-GCD的基本使用[40771:638780] 1-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.940 07-GCD的基本使用[40771:638780] 2-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.977 07-GCD的基本使用[40771:638780] 2-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.977 07-GCD的基本使用[40771:638780] 2-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.977 07-GCD的基本使用[40771:638780] 2-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.977 07-GCD的基本使用[40771:638780] 2-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.978 07-GCD的基本使用[40771:638780] 2-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.978 07-GCD的基本使用[40771:638780] 2-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.978 07-GCD的基本使用[40771:638780] 2-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.978 07-GCD的基本使用[40771:638780] 2-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.978 07-GCD的基本使用[40771:638780] 2-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.978 07-GCD的基本使用[40771:638780] 3-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.979 07-GCD的基本使用[40771:638780] 3-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.979 07-GCD的基本使用[40771:638780] 3-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.979 07-GCD的基本使用[40771:638780] 3-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.979 07-GCD的基本使用[40771:638780] 3-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.979 07-GCD的基本使用[40771:638780] 3-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.979 07-GCD的基本使用[40771:638780] 3-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.979 07-GCD的基本使用[40771:638780] 3-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.980 07-GCD的基本使用[40771:638780] 3-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.980 07-GCD的基本使用[40771:638780] 3-----<NSThread: 0x7f9559406d80>{number = 1, name = main}
//2016-08-09 16:17:24.980 07-GCD的基本使用[40771:638780] syncConcurrent2 ----- end
4.2异步函数 + 自创建并发队列
- (void)asyncConcurrent2
{
NSLog(@"asyncConcurrent2-----begin");
// 1.创建一个并发队列
// label : 相当于队列的名字
dispatch_queue_t queue = dispatch_queue_create("com.solozyx.queue", DISPATCH_QUEUE_CONCURRENT);
// 2.将任务加入队列
dispatch_async(queue, ^{
for (NSInteger i = 0; i<10; i++) {
NSLog(@"1-----%@", [NSThread currentThread]);
}
});
dispatch_async(queue, ^{
for (NSInteger i = 0; i<10; i++) {
NSLog(@"2-----%@", [NSThread currentThread]);
}
});
dispatch_async(queue, ^{
for (NSInteger i = 0; i<10; i++) {
NSLog(@"3-----%@", [NSThread currentThread]);
}
});
NSLog(@"asyncConcurrent2-----end");
// dispatch_release(queue);
}
//2016-08-09 16:10:43.093 07-GCD的基本使用[40420:632180] asyncConcurrent2-----begin
//2016-08-09 16:10:43.094 07-GCD的基本使用[40420:632180] asyncConcurrent2-----end
//2016-08-09 16:10:43.094 07-GCD的基本使用[40420:632231] 1-----<NSThread: 0x7f8ff040c780>{number = 2, name = (null)}
//2016-08-09 16:10:43.094 07-GCD的基本使用[40420:632228] 3-----<NSThread: 0x7f8ff0414a70>{number = 3, name = (null)}
//2016-08-09 16:10:43.095 07-GCD的基本使用[40420:632231] 1-----<NSThread: 0x7f8ff040c780>{number = 2, name = (null)}
//2016-08-09 16:10:43.095 07-GCD的基本使用[40420:632228] 3-----<NSThread: 0x7f8ff0414a70>{number = 3, name = (null)}
//2016-08-09 16:10:43.095 07-GCD的基本使用[40420:632225] 2-----<NSThread: 0x7f8ff0714f00>{number = 4, name = (null)}
//2016-08-09 16:10:43.095 07-GCD的基本使用[40420:632231] 1-----<NSThread: 0x7f8ff040c780>{number = 2, name = (null)}
//2016-08-09 16:10:43.095 07-GCD的基本使用[40420:632228] 3-----<NSThread: 0x7f8ff0414a70>{number = 3, name = (null)}
//2016-08-09 16:10:43.096 07-GCD的基本使用[40420:632225] 2-----<NSThread: 0x7f8ff0714f00>{number = 4, name = (null)}
//2016-08-09 16:10:43.096 07-GCD的基本使用[40420:632231] 1-----<NSThread: 0x7f8ff040c780>{number = 2, name = (null)}
//2016-08-09 16:10:43.096 07-GCD的基本使用[40420:632228] 3-----<NSThread: 0x7f8ff0414a70>{number = 3, name = (null)}
//2016-08-09 16:10:43.096 07-GCD的基本使用[40420:632225] 2-----<NSThread: 0x7f8ff0714f00>{number = 4, name = (null)}
//2016-08-09 16:10:43.137 07-GCD的基本使用[40420:632228] 3-----<NSThread: 0x7f8ff0414a70>{number = 3, name = (null)}
//2016-08-09 16:10:43.137 07-GCD的基本使用[40420:632225] 2-----<NSThread: 0x7f8ff0714f00>{number = 4, name = (null)}
//2016-08-09 16:10:43.137 07-GCD的基本使用[40420:632231] 1-----<NSThread: 0x7f8ff040c780>{number = 2, name = (null)}
//2016-08-09 16:10:43.138 07-GCD的基本使用[40420:632228] 3-----<NSThread: 0x7f8ff0414a70>{number = 3, name = (null)}
//2016-08-09 16:10:43.138 07-GCD的基本使用[40420:632225] 2-----<NSThread: 0x7f8ff0714f00>{number = 4, name = (null)}
//2016-08-09 16:10:43.138 07-GCD的基本使用[40420:632231] 1-----<NSThread: 0x7f8ff040c780>{number = 2, name = (null)}
//2016-08-09 16:10:43.138 07-GCD的基本使用[40420:632228] 3-----<NSThread: 0x7f8ff0414a70>{number = 3, name = (null)}
//2016-08-09 16:10:43.138 07-GCD的基本使用[40420:632225] 2-----<NSThread: 0x7f8ff0714f00>{number = 4, name = (null)}
//2016-08-09 16:10:43.138 07-GCD的基本使用[40420:632231] 1-----<NSThread: 0x7f8ff040c780>{number = 2, name = (null)}
//2016-08-09 16:10:43.138 07-GCD的基本使用[40420:632228] 3-----<NSThread: 0x7f8ff0414a70>{number = 3, name = (null)}
//2016-08-09 16:10:43.139 07-GCD的基本使用[40420:632225] 2-----<NSThread: 0x7f8ff0714f00>{number = 4, name = (null)}
//2016-08-09 16:10:43.139 07-GCD的基本使用[40420:632231] 1-----<NSThread: 0x7f8ff040c780>{number = 2, name = (null)}
//2016-08-09 16:10:43.139 07-GCD的基本使用[40420:632228] 3-----<NSThread: 0x7f8ff0414a70>{number = 3, name = (null)}
//2016-08-09 16:10:43.139 07-GCD的基本使用[40420:632225] 2-----<NSThread: 0x7f8ff0714f00>{number = 4, name = (null)}
//2016-08-09 16:10:43.140 07-GCD的基本使用[40420:632228] 3-----<NSThread: 0x7f8ff0414a70>{number = 3, name = (null)}
//2016-08-09 16:10:43.140 07-GCD的基本使用[40420:632231] 1-----<NSThread: 0x7f8ff040c780>{number = 2, name = (null)}
//2016-08-09 16:10:43.140 07-GCD的基本使用[40420:632225] 2-----<NSThread: 0x7f8ff0714f00>{number = 4, name = (null)}
//2016-08-09 16:10:43.140 07-GCD的基本使用[40420:632231] 1-----<NSThread: 0x7f8ff040c780>{number = 2, name = (null)}
//2016-08-09 16:10:43.140 07-GCD的基本使用[40420:632225] 2-----<NSThread: 0x7f8ff0714f00>{number = 4, name = (null)}
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