【正文】 s obtained. According to the situation on the basis of model 1 further study, the optimal planning theory is adopted to establish the same applies to people buy the same goods, a prehensive model 2 by Lingo software programming method can obtain the overall optimal solution. The specific scheme as shown in table 5.Question two: in this paper, according to the investigation and study found that each website has its own way of sales promotion. Some stores use a discount promotion in the form of double or multiple promotions, some website will launch on sale at the same time introduce modity goods amount reaches a certain amount of free shipping offers. So this article consider the question, on the basis of a discount, to add the latest preferential activities. On the basis of model 1 to add the latest preferential activities for model 3, using the Lingo software programming solution shows a Yi Bing Ding online deal with total costs were yuan, yuan, yuan and yuan. Concrete shopping plan in table 6 as shown in table 7 table 8 and table 9.Key words: online shopping。 Optimization theory。 01variable臨沂大學本科畢業(yè)論文（設計）1目 錄目 錄.........................................................................................................................................1..................................................................................................................................1..................................................................................................................................1 問題 1 的分析 ...................................................................................................................1 問題 2 的分析 ..................................................................................................................2..................................................................................................................................2......................................................................................................................3..................................................................................................................3 模型 1 的建立與求解 .......................................................................................................3 模型 2 的建立與求解 .......................................................................................................5 模型 3 的建立與求解 .......................................................................................................6.....................................................................................................................7 模型的評價 ......................................................................................................................7 模型的推廣 ......................................................................................................................7附 錄 .........................................................................................................................................9參 考 文 獻 .............................................................................................................................17致 謝.......................................................................................................................................18臨沂大學本科畢業(yè)論文（設計）1 科技不停地發(fā)展,為生活提供了很多的便利. 而網(wǎng)絡時代的來臨使得我們的生活發(fā)生了很大的變化. 網(wǎng)絡為我們提供了很多的便利. 網(wǎng)絡購物就是一個最好的例子. 網(wǎng)絡購物由于方便,廉價,服務周到,深受網(wǎng)民的喜愛已經(jīng)成為一種時尚的購物方式. 購物網(wǎng)站為了提高知名度和市場占有率,除了打折之外還推出了一些其他的促銷活動. 這些活動的規(guī)則往往有專門的營銷團隊根據(jù)商品的定價,庫存量以及消費者的消費心理來制定. 可是對于消費者來說,他們最關心的部分是如何充分利用購物網(wǎng)站的折扣和該購物網(wǎng)站的促銷活動來使用最少的錢購買到自己喜歡的商品. 而對于各式各樣的網(wǎng)購優(yōu)惠方案如. 一般情況下,一個訂單的應付費用由該訂單的貨款和該訂單的運費組成. 一個訂單的貨款即該訂單中所有商品的售價之和減去該訂單的優(yōu)惠金額. 現(xiàn)僅考慮三個購物網(wǎng)站 A、B 和 C 相