public int UpdateByTime()
{
SqlHelper sh = new SqlHelper();
sh.Open();
DeleteOldDAL dlt = new DeleteOldDAL(sh);
InsertNewDAL ins = new InsertNewDAL(sh);
try
{ // 把本地的中间结果数据表进行更新（先清空后插入）
dlt.DeleteUserUse();
ins.InsertUesr_Use();
dlt.DeleteSubject_Use();
ins.InsertSubject_Use();
dlt.DeleteResource_UseTotal();
ins.InsertResource_UseTotal();
}
catch (Exception ex)
{
return(0); //更新数据失败
}
return(1); //跟新数据成功
}