我只想履行以下职能: • 编制一个参考材料,并有一个提纲,即像Finder或一个叫做“开拓者”的镜头一样,有双倍的树木和树木,如何执行? 非常感谢!
I ve got the problem when I tried to do asynchronous requests to server from background thread. I ve never got results of those requests. Simple example which shows the problem: @protocol ...