# 3. IP address、結構與資料轉換

這裡是好玩的地方，我們要開始談程式碼了。

不過，我們一開始要討論的程式碼會比較少！

耶！因為我想要先講點 IP address（位址）與 port（連接埠），這樣才會有點感覺；接著我們會討論 socket API 如何儲存與控制 IP address 和其它資料。


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