/// <summary>
/// 修改数据库中的值
/// </summary>
/// <param name="model">修改后的实体对象</param>
/// <param name="proNames">修改了哪些属性名</param>
/// <returns></returns>
public int Modify(T model, params string[] proNames)
{
DbEntityEntry entry = EF.Entry <T>(model);
entry.State = System.Data.Entity.EntityState.Unchanged;
foreach (string s in proNames)
{
entry.Property(s).IsModified = true;
}
return(EF.SaveChanges());
}