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                            # 樹
# 二叉樹
![](https://img.kancloud.cn/3f/bf/3fbf2a13a2047574115b2e27861d07e7_331x287.png)
![](https://img.kancloud.cn/aa/5a/aa5a5bc9f0092b82b27f7172dd257bd0_944x392.png)
## 深度遍歷
從樹的頂點出發，沿著樹的深度遍歷節點，如當前節點所在的邊都被搜索過，就回溯到當前節點所在

                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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