public List <LiXinModels.CourseManage.Co_Course> GetListByTeacher(out int totalCount, int teacher,
string where = " 1 = 1 ",
int startIndex = 0,
int pageLength = int.MaxValue,
string orderBy = "ORDER BY Co_Course.id DESC")
{
return(_courseOrderDB.GetListByTeacher(out totalCount, teacher, where, startIndex, pageLength, orderBy));
}