C # and C ++ data interaction method based on numerical control system

The invention discloses a C # and C ++ data interaction method based on a numerical control system. A class List with directivity is formed by assigning values to the class List, a plurality of classes List with directivity are connected into a linked list, the linked list can achieve the functions of adding, deleting, inserting and the like, so that the linked list has flexibility, and the problem that C # cannot issue a large amount of connection data to C++ is effectively solved; The message queues do not occupy the UI threads, the UI threads are liberated, the UI threads only perform interface refreshing work, the software running fluency is improved, and the problem of interface jamming and false death caused by the fact that the message queues wait to be executed is effectively solved; A parameter wParam or lParam is used for a non-hosting pointer, then the parameter wParam or lParam is written into an inner hosting memory, data is read after a message is received, and the problem that multiple informat