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();
}
