12.

• will32 发布于
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多线程加载网络图片 let url = URL(string: http://c.hiphotos.baidu.com/zhidao/pic/item/5ab5c9ea15ce36d3c704f35538f33a87e950b156.jpg) let task = URLSession.shared.dataTask(with: url!) { (data, response, e...