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                            # 數組的長度
---
## 問題
題目：如何獲得下面數組的長度：
int[ ] a = {4,23,1,45,22};
## 結果
調用數組的length屬性可獲得數組的長度
a.length;
## 結論
#### 每個數組都有一個默認的屬性length，存儲數組的長度。而字符串的長度用length()方法返回，不要混淆。


                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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