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                            ## while循環語法格式

```
while ( 條件 )
{
    語句1;
    語句2;
    ....
}
```

## while循環執行流程

* while語句語義:

  * 如果條件成立,就會執行循環體中的語句\(“循環體”就是while后面大括號{}中的內 容\)。然后再次判斷條件,重復上述過程,直到條件不成立就結束while循環

* while循環特點:

  * **如果while中的條件一開始就不成立,那么循環體中的語句永遠不會被執行**




                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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