[BUG反饋]使用mysqli資料庫驅動時，還原資料庫備份時，出錯，提示沒有 free_result()函式未找到！

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        Call to a member function free_result() on a non-object



        
        
                
                
                        
                        
                                錯誤位置
                        

                

                
                        
                        
                                FILE: D:\sites\ruikebao\ThinkPHP\Library\Think\Db\Driver\Mysqli.class.php  LINE: 67