Fatal error: Out of memory (allocated 2097152) (tried to allocate 20480 bytes) in C:\wwwroot\www.bieshu-11.com\thinkphp\library\think\db\Connection.php on line 578

Fatal error: Out of memory (allocated 2097152) (tried to allocate 32768 bytes) in C:\wwwroot\www.bieshu-11.com\thinkphp\library\think\exception\ErrorException.php on line 1