总款数{{ (productTotal&&(productTotal.purchaseSize || productTotal.purchaseSize==0)) ? productTotal.purchaseSize : '--' }} ,
总数量{{ (productTotal&&(productTotal.purchaseQty || productTotal.purchaseQty==0)) ? productTotal.purchaseQty : '--' }} ,
总金额{{ (productTotal&&(productTotal.purchaseCost || productTotal.purchaseCost==0)) ? '¥'+productTotal.purchaseCost : '--' }}