Fatal error: Out of memory (allocated 2097152) (tried to allocate 32768 bytes) in D:\soft\progect\thinkphp\library\think\db\Query.php on line 3688

Fatal error: Out of memory (allocated 2097152) (tried to allocate 32768 bytes) in D:\soft\progect\thinkphp\library\think\exception\ErrorException.php on line 1