/// <summary>
/// 更新课程信息
/// </summary>
/// <param name="course"></param>
public void update(Course course)
{
dal.update(course);
}
/// <summary>
/// 删除课程信息
/// </summary>
/// <param name="course"></param>
public void delete(Course course)
{
dal.delete(course);
}
/// <summary>
/// 保存课程信息
/// </summary>
/// <param name="course"></param>
public void save(Course course)
{
dal.save(course);
}
