Polymers, with its extensive applications to industry and its unique properties, grasp growing interest among the soft condensed matters filed. As one of the classical cases studied, diblock copolymers perform interesting mesostrucures and characteristics. Based on self-consistent field theory, we use computational tools to simulate and study diblock copolymers with vector interaction in two and three dimensions. We demonstrate the energies , structures and vector fields in the cases we studied. With the align favored interactions, the block copolymers tend to have larger lattice constant and lower free energies. The properties we measusured are slighted different from typical diblock copolymers.