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                            ![](https://img.kancloud.cn/02/08/0208002c5248f4c06e67add7ee66872d_562x240.png =400x)

### 

當變量值在列表里，for循環即執行一次所有命令，使用變量名獲取列表中的當前取值，命令可為任何有效的shell命令和語句。
![](https://img.kancloud.cn/b1/1e/b11eb7644ad711b672c53f10fb2d72f7_714x602.png =600x)

### 

運行如下：
![](https://img.kancloud.cn/9d/6f/9d6f3dc7c632eb4e958fbb046ef4a0d2_832x414.png =600x)

### 

可以看到，在for循環的in列表中，既可以是數值，也可以是字符串，還可以是表達式。
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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