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                            ### 5種IO模型

* **blocking IO - 阻塞IO**
* **nonblocking IO - 非阻塞IO**
* **IO multiplexing - IO多路復用**
* **signal driven IO - 信號驅動IO**
* **asynchronous IO - 異步IO**

![](../assets/20180628154617001.png)

### NIO優點

![](../assets/20180628114417001.png)

### JDK NIO開發問題

![](../assets/20180628161246001.png)

### 【知識點】

JDK1.7升級了NIO類庫，升級后的NIO類庫稱為NIO2.0




                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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