摘要: 对于如下的代码,打印结果是什么 dispatch_queue_t queue = dispatch_get_global_queue(0, 0); dispatch_async(queue, ^{ NSLog(@"1"); [self performSelector:@selector(testha 阅读全文
posted @ 2021-02-23 23:33 木子沉雨 阅读(142) 评论(0) 推荐(0) 编辑