x++实现物料数量的单位换算

 qty getUnitConvert(Qty          qty,
                   ItemId       ItemId,
                   UnitId       _InventUnit,
                   UnitId       _CsmUnitId)
{
    Real       factor_ok;
    Qty        CSMQty;
    ;

    factor_ok     = unitconvert::find(ItemId,_InventUnit,_CsmUnitId).Factor; //库存单位到海关单位
    if(factor_ok == 0.00)
    {
        factor_ok   = unitconvert::find(ItemId,_CsmUnitId,_InventUnit).Factor;//海关单位到库存单位
        if(factor_ok != 0.00 )

            factor_ok = 1/factor_ok;
        else

            factor_ok = 0.00;
    }//End else
    if(factor_ok == 0.00)
        CSMQty = (1/1) * qty;//海关单位的在仓数量
    else
        CSMQty = (1/factor_ok) * qty;

    return CSMQty;
}