1  /// <summary>
 2         /// 修改
 3         /// </summary>
 4         /// <param name="model"></param>
 5         /// <returns></returns>
 6         public bool Update(T model)
 7         {
 8             //try
 9             //{
10             db.Set<T>().Attach(model);
11             db.Entry(model).State = System.Data.EntityState.Modified;
12             db.SaveChanges();
13             return true;
14             //}
15             //catch(Exception err)
16             //{
17             //    return false;
18             //}
19         }