【正文】
系統(tǒng)概要 分析 在軟件需求分析階段,搞清楚了軟件 “ 做什么 ” 的問題,形成了目標系統(tǒng)的邏輯模型。模塊化是指解決一個復雜問題時自項向下逐層把軟件系統(tǒng)劃分成若干個模塊的過程。 在系統(tǒng)的概要設(shè)計中我采用結(jié)構(gòu)化設(shè)計( Structure Design,簡稱 SD), SD 以需求分析階段產(chǎn)生的數(shù)據(jù)流圖 DFD 為基礎(chǔ),按一定 的步驟映射成軟件結(jié)構(gòu)。這些信息再進一步加工、編碼,然后進數(shù)據(jù)世界,而軟件系統(tǒng)的開發(fā)工作需要考慮這兩個方面的問題,也就是要考慮系統(tǒng)開發(fā)所需要的數(shù)據(jù),以及 如何對這些數(shù)據(jù)進行操作。在本系統(tǒng)中我采用 “ 實體聯(lián)系模型 ”( ER 模型)來描述數(shù)據(jù)庫的結(jié)構(gòu)與語義,以對現(xiàn)實世界進行第一次抽象。 ER圖是直觀表示概念模型的工具,它有四個基本成分: ◆ 矩形框,表示實體類型(考慮問題的對象)。 ◆ 直線,聯(lián)系類型與其涉及的實體類型之間以直線連接。39。進入系統(tǒng) 39。39。 主要代碼為: 存款 local countid,cardid,moneyin,allhere countid=alltrim() cardid=alltrim() moneyin=val() if empty(cardid) and empty(countid) messagebox(您輸入的信息不完整,請重輸! ,48) else if empty(cardid) sele user locate for alltrim()=countid if eof() messagebox(對不起,沒有這個帳號! ) else if moneyin=0 messagebox(您輸入的存款金額有誤,請重輸! ,48) else allhere= allhere=allhere+moneyin replace with allhere 賬戶管理界面 if allhere=0 replace with 正常 sele card locate for alltrim()=alltrim(countid) replace with allhere with 正常 sele userall go bottom append blank replace user_id with countid。 user_all with allhere messagebox(操作成功 ,48) endif endif =allhere endif else sele card locate for alltrim()=cardid if eof() messagebox(對不起,沒有這個卡號! ) else countid= if moneyin=0 messagebox(您輸入的存款金額有誤,請重輸! ,48) else allhere= allhere=allhere+moneyin replace with allhere if allhere=0 replace with 正常 sele user locate for alltrim()=alltrim(countid) replace with allhere with 正常 sele userall go bottom append blank replace user_id with countid。 user_all with allhere messagebox(操作成功 ,48) endif endif =allhere endif endif endif =39。 outin_time with date()。 outin_time with date()。并提供部分系統(tǒng)維護功能。如:用戶界面不夠美觀,系統(tǒng)穩(wěn)定性等方面還會出現(xiàn)不可預料的問題。 本篇論文到此結(jié)束了,但對于銀行賬戶管理系統(tǒng)及其在銀行中的應用這一課題我們的研究和思考仍將繼續(xù)下去。 參考文獻 1 薛華成 . 管理信息系統(tǒng) . 第 3 版 .北京:清華大學出版社, 1999 2 鄺孔武 ,王曉敏 .信息系統(tǒng)分析與設(shè)計 .北京 :清華大學出版社 ,1999 3 Chris Todman .支持人事的數(shù)據(jù)倉庫設(shè)計.機械工業(yè)出版社 , 4 宏波.電信企業(yè)客戶關(guān)系管理.機械工業(yè)出版社 , 2021. 5 陳花生,單啟成 .Visual FoxPro 教程 . 蘇州大學出版社, 1999 6 張治文,何磊等 . Visual 開發(fā)實例 .清華大學出版社 .1999 7黃梯云 .管理信息系統(tǒng) .高等教育出版社 .2021 8黃梯云 .管理信息系統(tǒng) .經(jīng)濟科學出版社 .1997 9 羅小沛,侯炳輝 .系統(tǒng)分析員教程 .清華大學出版社 .1998 10 陳曉紅,吳良剛 .管理信息系統(tǒng)理論與實踐 .中南工業(yè)大學出版社 .1996 11 張基溫,王一平 .信息系統(tǒng)開發(fā)案例 .清華大學出版社 .1999 12 吳迪 .企業(yè)管理信息系統(tǒng)( MIS)基礎(chǔ) .清華大學出版社 .1998 sounds that were a lot like laughter. 39。s back. Billy39。s important wires in it. Weary was going to break that tube. But then Weary saw that he had an audience. Five German soldiers and a police dog on a leash were looking dow n into the bed of the creek. The soldiers39。 The dog, who had sounded so ferocious in the winter distances, was a female German shepherd. She was shivering. Her tail was between her legs. She had been borrowed that morning from a farmer. She had never been to war before. She had no idea what game was being played. Her mine was Princess. Two of the Germans were boys in their early teens. Two were ramshackle old me droolers as toothless as carp. They were irregulars, armed and clothed fragmentarily with junk taken from real soldiers who were newly dead. So it goes. They were farmers from just across the German border, not far away. Their manander was a middleaged corporalredeyed., scrawny, tough as dried beef, sic k of war. He had been wounded four timesand patched up, and sent back to war. He was a very good soldierabout to quit, about to find somebody to surrender to. His bandy legs were thrust into golden cavalry boots which he had taken from a dead Hungarian colonel on the Russian front. So it goes. Those boots were almost all he owned in this world. They were his home. An anecdote: One time a recruit was watching him bone and wax those golden boots, and he held one up to the recruit and said, 39。s boots, saw Adam and Eve in the golden depths. They were naked. They were so innocent, so vulnerable, so eager to behave decently. Billy Pilgrim loved them. Next to the golden boots were a pair of feet which were swaddled in rags. They were crisscrossed by canvas straps, were shod with hinged wooden clogs. Billy looked up at the face that went with the clogs. It was the face of a blond angel of fifteenyearold boy. The boy was as beautiful as Eve. Billy was helped to his feet by the lovely boy, by the heavenly androgyne. And the others came forward to dust the snow off Billy., and then they searched him for weapons. He didn39。Nice playthings you have, the corporal told Weary, and he handed the knife to an old man. 39。s gaping bosom as though he meant to tear out his pounding heart, but he brought out Weary39。What a lucky pony, eh?39。Spoils of war! It39。 and they had to walk for miles and miles, with Weary39。I beg your pardon.39。t remember that, either. 39。 he said. 39。Sorry.39。Um.39。Terrible?39。t that a strange law? The man gave me a quick glance, then replied casually. Didn39。t give them new names, either. That39。s profile. Now that he said so, it was a face I seemed to have seen somewhere before. I started to ask his name, h esitated, and fell silent. The elderly man said abruptly, It39。t give up writing because I haven39。d gone on boldly writing social criticism and had been arrested. There are even times when I think that. But I was just a dilettante, never knowing poverty, craving peaceful dreams. I wanted to live a fortable life. As a person strong in self respect, I couldn39。s no one home but my wife. Thank you very much. I gave him my own name. I didn39。d better go, I said. He turned a sadly smiling face toward me and bowed slightly. After stroking the dogpillar39。s face, it may be better to call the se cattrees. Maybe. I thought, it3