/// <summary>
 /// 更新教材
 /// </summary>
 /// <param name="book"></param>
 /// <returns></returns>
 public int UpdateTeacherBook(ResTeacherBook book)
 {
     return(_dataAccess.UpdateEntity(book));
 }
 /// <summary>
 /// 添加教材
 /// </summary>
 /// <param name="book"></param>
 /// <returns></returns>
 public int AddTeacherBook(ResTeacherBook book)
 {
     return(_dataAccess.AddEntity(book));
 }