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                            [TOC]

## 中序遍歷與后序遍歷
![](https://img.kancloud.cn/02/78/02785c2ff82b267fd810360f7e11a58d_249x400.png)

中序遍歷
- 先遍歷一個節點的左子樹
- 再遍歷節點本身
- 再遍歷右子樹
- 圖中:7+ 3 * 2

后序遍歷(教程中采用此方法)
- 先遍歷一個節點的左子樹
- 再遍歷節點的右子樹
- 最后節點本身
- 圖中7 3 2 * +

后序遍歷的一個特點是當傳入為運算符時,則可進行運算,在把值放入棧中
如: `7 3 2 *` -> `7 6 +` ->`13`
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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