# 3. IP address丶结构与数据转换

这里是好玩的地方，我们要开始谈代码了。

不过，我们一开始要讨论的代码会比较少！

耶！因为我想要先讲点 IP address（地址）与 port（端口），这样才会比较有谱；接着我们会讨论 socket API 如何储存与控制 IP address 和其它数据。


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