public int Change(salary_item t) { return(dao.Change(t)); }
public int Del(salary_item t) { return(dao.Del(t)); }
public int Add(salary_item t) { return(dao.Add(t)); }
public int Change(salary_item t) { return(dao.Change(t)); }
public int Del(salary_item t) { return(dao.Del(t)); }
public int Add(salary_item t) { return(dao.Add(t)); }