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--:  作者:Fuzz
時間:2018年10 月18日

* * * * *
## 7層OSI

![](https://box.kancloud.cn/da57b3c14f9d1938269a557174ec863b_654x458.png)
    基礎層:物理層(Physical)、數據鏈路層(Datalink)、網絡層(NetWork)
    傳輸層:TCP-UDP 協議層、Socket
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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