public ProjectBLL() { db = new GTMDweixinEntities(); }
public NoticeBLL() { db = new GTMDweixinEntities(); }
public FeedbackBLL() { db = new GTMDweixinEntities(); }
public StudentProjectBLL() { db = new GTMDweixinEntities(); }
public SignBLL() { db = new GTMDweixinEntities(); }
public MenuBLL() { db = new GTMDweixinEntities(); }
public UserBLL() { db = new GTMDweixinEntities(); }