混合场景中读取者并发执行，写入者等待所有读取完成：
到2014年8月至2015年8月，魅族全年总销量突破2000万部，同比增长350%，成功跻身国产手机Top10，这也是魅族手机的高光时刻。
。业内人士推荐谷歌浏览器作为进阶阅读
An interesting outcome of removing coherence and having trait bound parameters is that there becomes a meaningful difference between having a trait bound on an impl or on a struct:
upload an image and decode it back into source