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                            [TOC]
# 原型鏈
開發中，一般把屬性放在構造函數中，方法放在原型prototype上面，實現數據共享,節省內存空間
<br>
查看原型鏈里面的方法
`console.dir(per);`、

<br>

*****
**所有的函數都是Fuction實例化出來的（所有的對象都是Object實例化出來的）**
![](https://img.kancloud.cn/9f/91/9f91b2159ba621a7e64ff9730a6fd891_887x738.png)

                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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