public string getTaiYuan()
{
int ganIndex = lunar.getMonthGanIndexExact() + 1;
if (ganIndex >= 10)
{
ganIndex -= 10;
}
int zhiIndex = lunar.getMonthZhiIndexExact() + 3;
if (zhiIndex >= 12)
{
zhiIndex -= 12;
}
return(LunarUtil.GAN[ganIndex + 1] + LunarUtil.ZHI[zhiIndex + 1]);
}