超市收費系統(tǒng)的設計與實現(xiàn)—畢業(yè)設計論文-資料下載頁

【導讀】業(yè)必不可少的工具。在當今激烈的市場競爭中,讓顧客享受既實惠又快捷的購物。服務是商戰(zhàn)中制勝的一大要素。改革開放的今天,各種大型超市林立,超市已成為。消費者日常活動的主要場所。而超市商品也非常之多,建立一套方便快捷的超市。收費系統(tǒng)是企業(yè)必然要解決的一個問題。系統(tǒng)采用的編程工具是Delphi版本。與Access作為數(shù)據(jù)庫。系統(tǒng)分為前臺系統(tǒng)和后臺系統(tǒng)，其中，前臺系統(tǒng)提供了。很方便的商品銷售收費功能,這其中包括會員卡用戶可享受八折優(yōu)惠。統(tǒng)則提供了一些商品管理功能，如采購入庫，庫存盤點，出庫明細等模塊。論文共分為五大部分。第一部分簡要敘述了系統(tǒng)的基本概況。部分分別從軟件工程的要求出發(fā)，首先進行問題的定義，其次進行可行性研究，細設計，并闡述了如何實現(xiàn)具體功能。第四部分為系統(tǒng)調試，其中包括子模塊測

　　

【正文】 fallen up, into the fires and the coldness of space, never again to see the warm blues and browns and greens of Earth: 1 was wa tching Satan fall as lightning from heaven. He had heard that on tape somewhere, but he could not remember where. He had read that on Earth lightning did not e down from the clouds, but leaped up from the plane tary surface toward them, never to return. Nicholas. He listened, but did not hear his name again. Faintly water was babbling。 had Dr. Island used that sound to speak to him? He walked toward it and found a little rill that threaded a way among the trees, and followed it. In a hundred steps it grew broader, slowed, and ended in a long blind pool under a dome of leaves. . Diane was sitting on moss on the side opposite him。 she looked up as she saw him, and smiled. Hello, he said. Hello, Nicholas. I thought I heard you. I wasn39。t mistaken after all, was I? I didn39。t think I said anything. He tested the dark water with his foot and found that it was very cold. You gave a little gasp, I fancy. I heard it, and I said to myself, that39。s Nicholas, and I called you. Then I thought I might be wrong, or that it might be Ignacio. Ignacio was chasing me. Maybe he still is, but h think he39。s probably given up by now. The girl nodded, looking into the dar k waters of they pool, but did not seem to have heard him. He began to wor k his way around to her, climbing across the sna kelike roots of the crowding trees. Why does Ignacio want to kill me, Diane? Sometimes he wants to kill me, too, the girl said. But why? I think he39。s a bit frightened of us. Have you ever talked to him, Nicholas? Today I did a little. He told me a story about a pet fish he used to have. Ignacio grew up all alone。 did he tell you that? On= Earth. On a plantation in Brazil, way up the Amazon Dr. Island told me. I thought it was crowded on Earth. The cities are crowded, and the countryside closes to the cities. But there are places where it39。s emptie than it used to be. Where Ignacio was, there would have been Red Indian hunters two or three hundred years ago。 when he was there, there wasn39。t anyone,` just the m achines. Now he doesn39。t want to be looked at, doesn39。t want anyone around him. Nicholas said slowly, Dr. Island said lots of people wouldn39。t be sick if only there weren39。t other people around all the time . Remember that? a Only there. are other people around all the time。 that39。s how the world is. Not in Brazil, maybe, Nicholas said. He was trying to remember something about Brazil, but the only thing he could think of was a parrot singing in a straw hat from the view cartoons。 and then a turtle and a hedgehog that turned into armadillos for the love of God, Montressor. He said, Why didn39。t he stay there? Did I tell you about the bird, Nicholas? She had been not listening again. What bird? I have a bird. Inside. She patted the flat stomach below her small breasts, and for a moment, Nicholas thought she had really found food. She sits in here. She has tangled a nest in my entrails, where she sits and tears at my breath with her beak. I look healthy to you, don39。t I? But inside I39。m hollow and rotten and turning brown, dirt and old feathers, oozing away. Her beak will break through soon. Okay. Nicholas turned to go. I39。ve been drinking water here, trying to drown her. I think I39。ve swallowed so much I couldn39。t stand up now if I tried, but she isn39。t even wet, and do you know something, N icholas? I39。ve found out I39。m not really me, I39。m her. Turning back Nicholas asked, When was the last time you had anything to eat? I don39。t know. Two, three days ago. Ignacio gave me something. I39。m going to try to open a coconut. If I can I39。ll bring you back some. When he reached the beach, Nicholas turned and walked slowly bac k in the direction of the dead fire, this time along the rim of dampened sand between the sea and the palms. He was thinking about machines. There were hundreds of thousands, perhaps millions, of machines out beyond the belt, but few or none of the sophisticated servant robots of Earththose were luxuries. Would Ignacio, in Brazil (whatever that was like), have had such luxuries ? N icholas thought not。 those robots were almost like people, and living with them would be like living with people. Nicholas wished that he could speak Brazilian. There had been the therapy robots at St. John39。s。 Nicholas had not liked them, and he did not think Ignacio would have liked them either. If he had liked his therapy robot he probably would not have had to be sent here. He thought of the chipped and rusted old machine that had cleaned the corridorsMaya had called it Corradora, but no one else ever called it any F thing but Hey! It could not (or at least did not) speak, 1 and Nicholas doubted that it had emotions, except possibly a sort of love of cleanness that did not extend to its own person. You will understand, someone was saying inside his head, that motives of all sorts can be divided into two sorts. A doctor? A therapy robot? It did not matter. Extrinsic and intrinsic. An extrinsic motive has a lways some further end in view, and that end we call an intrinsic motive. Thus when we have reduced motivation to intrinsic motivation we have reduced it to its simplest parts. Take that machine over there. What machine? Freud would have said that it was fixated at the latter anal stage, perhaps due to the care its builders exercised in seeing that the dirt it collects is not released again. Because of its fixation it is, as you see, obsessed with cleanliness and order。 pulsive sweeping and scrubbing palliate its anxieties. It is a strength of Freud39。s theory, and not a wea kness, that it serves ` to explain many of the activities of machines as well as the acts of persons. Hello there, Corradora. And hello, Ignacio.