日前日本上空出现神秘发光环状云的话题登上网络热搜，当地民众担心这是“地震云”，日本气象厅气象研究所首席研究员指出，这并非地震的前兆，云不能成为预示将要地震的迹象。据了解，这种云叫做“荚状云”，是因为空
I\'d like to make sure about the correctness of the way I try to use accept() on a socket. I know that in Linux it\'s safe to listen() on a socket, fork() N children and then recv() the packets in al
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