购物车前台页面代码, 这只是个小例子, 具体可以自由发挥
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购物车自动计价
物品编号 物品名称 数量 价格 小计
jsp_123
                电脑
1
                        2
                        3
                        4
                        5
1950
                1950
jsp_123
                电脑
1
                        2
                        3
                        4
                        5
1950
                1950
jsp_123
                电脑
1
                        2
                        3
                        4
                        5
1950
                1950
总计: 5850
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