一、基础用法 performSelector响应了OC语言的动态性,延迟到运行时才绑定方法。意味着可以传递一个变量选择器作为参数,向接收方发送指定的消息并返回消息的结果
[obj performSelector:@selector(play)]; [obj performSelector:@selector(play) withObject:@“xx”]; [obj performSelector:@selector(play) withObject:@“xx” withObject:@“ss”]; 在主线程执行,并指定是否(waitUntilDone)阻塞此线程 [obj...