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## QObject的創建時間
1. 確保每一個 Qobject在QApplication之后創建,在 QApplication銷毀前銷毀
這一點至關重要。靜態存儲區創建的對象將在main(返回后才被銷毀,這就太遲了
意味著絕不應該定義**靜態存儲類的 QObject**
2. 一般情況下,沒有父對象的 QObject應當在棧上創建,或者定義成另一個類的子對象.
    有父對象的 Qobject不應在棧上創建,因為那樣的話,它有可能會被刪除兩次
    在堆上創建的所有 QObject都應當或者是有父對象的,或者是由其他對象進行管理的

                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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