//---- 保存為xls，必須使用絕對路徑，否則excel 無返回，程序crash，但是卻也不退出
char sz_save[256] = {0};
_snprintf(sz_save, sizeof(sz_save) - 1, "%s\\%d.xls", sz_dir, agent_account);
printf("%s\n", sz_save);
m_ExlSheet.SaveAs(sz_save, vtMissing, _variant_t(""), vtMissing, vtMissing,
vtMissing, vtMissing, vtMissing, vtMissing, vtMissing);