total_sale:=total_sale+quantity_sold*item_price;这是书上的原程序,我觉得这个公式有问题!我觉得应该是total_sale:=quantity_sold*item_price;
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total_sale:=total_sale+quantity_sold*item_price;这是书上的原程序,我觉得这个公式有问题!我觉得应该是total_sale:=quantity_sold*item_price;
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米娜桑帮我想个作文题目吧,内容是关于孝的=============================================新颖一点的！新颖！=============================================
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