说明：  网络游戏中的数据包设计与定义初论---当前网络游戏中的封包，其定义形式是各种各样的，但归纳起来，一般都具有如下要素：封包长度，封包类型，封包参数，校验码等。
(Network packet game design and the definition of the beginning of the game--- current network packet, the definition is a wide variety of forms, can be summed up in general have the following elements: packet length, packet type, packet parameters, such as check codes.)