【正文】 some of them areleaders in battle。 this shall be seen to by the wardens of theagora, and by the wardens of the city, and by the wardens of thecountry. And so retail trade will benefit every one, and do theleast possible injury to those in the state who practise it. When a man makes an agreement which he does not fulfil, unless theagreement be of a nature which the law or a vote of the assemblydoes not allow, or which he has made under the influence of someunjust pulsion, or which he is prevented from fulfilling againsthis will by some unexpected chance, the other party may go to law w ithhim in the courts of the tribes, for not having pleted hisagreement, if the parties are not able previously to e to termsbefore arbiters or before their neighbours. The class of craftsmen whohave furnished human life with the arts is dedicated to Hephaestus andAthene。 andevery time that he is convicted let the lengt h of his imprisonmentbe doubled. This shall be the second law:He who engages in retailtrade must be either a metic or a stranger. And a third law shallbe:In order that the retail trader who dwells in our city may be asgood or as little bad as possible, the guardians of the law shallremember that they are not only guardians of those who may be easilywatched and prevented from being lawless or bad, because they arewellborn and bred。s house by anunworthy occupation, let him be imprisoned for a year and abstain fromthat sort of thing。 and in general for his elderswho are freemen, and whom he serves as a freeman. Now it isdifficult to determine accurately the things w hich are worthy orunworthy of a freeman, but let those who have obtained the prize ofvirtue give judgment about them in accordance with their feelings ofright and wrong. He who in any way shares in the illiberality ofretail trades may be indicted for dishonouring his race by any one wholikes, before those who have been judged to be the first in virtue。 and in the third place, they must devise some way wherebythe followers of these occupations themselves will not readily fallinto habits of unbridled shamelessness and meanness. After this preface let our law run as follows, and may fortunefavour us:No landowner among the Mages, w hose city the God isrestoring and resettlingno one, that is, of the 5040 families,shall bee a retail trader either voluntarily or involuntarily。 one of whom corruptsthe soul of man with luxury, while the other drives him by pain intoutter shamelessness. What remedy can a city of sense find against thisdisease? In the first place, they must have as few retail traders aspossible。 and if all such occupations were managed onincorrupt principles, they would be honoured as we honour a motheror a nurse. But now that a man goes to desert places and builds bousesw hich can only be reached be long journeys, for the sa ke of retailtrade, and receives strangers who are in need at the welerestingplace, and gives them peace and calm when they are tossed bythe storm, or cool shade in the heat。 wherefore all that relates to retail trade, andmerchandise , and the keeping of taverns, is denounced and numberedamong dishonourable things. For if what I trust may never be andwill not be, we were to pel, if I may venture to say a ridiculousthing, the be st men everywhere to keep taverns for a time, or carry onretail trade, or do anything of that sort。 for is not he a benefactor who reduces the inequalitiesand inmensurabilities of goods to equality and mon measure?And this is what the power of money acplishes, and the merchant maybe said to be appointed for this purpose. The hireling and thetavernkeeper, and many other occupations, some of them more andothers less seemly alike have this object。 and the herald shall proclaim in the agora theoffence for which he is going to be beaten. The warden of the agoraand the guardians of the law shall obtain information from experiencedpersons about the rogueries and adul terations of the sellers, andshall write up what the seller ought and ought not to do in each case。 除非 另有科研合同和其他法律文書(shū)的制約，本論文的科研成果屬于成都信息工程學(xué)院。 （ 4）學(xué)?？稍试S學(xué)位論文被查閱或借閱。 （ 2）學(xué)?？梢圆捎糜坝?、縮印或其他復(fù)制方式保存學(xué)位論文。除非另有說(shuō)明，本文的工作是原始性工作。在此向他表示我最衷心的感謝！ 在論文完成過(guò)程中，本人還得到了田鴻川老師和劉杰同學(xué)的熱心幫助， 本人向他們表示深深的謝意！ 最后向在百忙之中評(píng)審本文的各位專家、老師表示衷心的感謝！ 作者簡(jiǎn)介 姓 名：李 皓 性別：男 出生年月： 1983 年 4 月 26 日 民族：漢 Email: 聲 明 本論文的工作是 2020 年 2 月至 2020 年 6 月 在成都信息工程學(xué)院網(wǎng)絡(luò)工程系完成的。 [8] Adam Freeman,Allen Jones..NET 安全編程 [M].北京：清華大學(xué)出版社 ,2020 年。 [6] 胡勇輝 ,曹倬瑝 ,蘭湘濤等 . 開(kāi)發(fā)實(shí)戰(zhàn)詳解 [M].北京：電子工業(yè)出版社 ,2020 年。 [4] 郭晶 ,孫偉娟 .ASP 網(wǎng)站開(kāi)發(fā)四酷全書(shū) [M].北京 ： 電子工業(yè)出版社 ,2020 年。 [2] 陳峰棋 .ASP 與 SQL 網(wǎng)站數(shù)據(jù)庫(kù)程序設(shè)計(jì) [M] .北京：科學(xué)出版社 ,2020 年。 并在此過(guò)程中切身體會(huì)到一個(gè)項(xiàng)目的設(shè)計(jì)開(kāi)發(fā)人員 ， 在系統(tǒng)立項(xiàng)前期所應(yīng)該做到哪些前瞻性的信息收集和基礎(chǔ)設(shè)計(jì)工作 ， 才能夠始終把握系統(tǒng)進(jìn)展的方向 ， 和總體設(shè)計(jì)上的主動(dòng)性。 感謝我的畢業(yè)設(shè)計(jì)指導(dǎo)教師的指導(dǎo)和啟發(fā) ，使我 不斷的修正錯(cuò)誤 ,克服困難 。在學(xué)習(xí)新知識(shí)的同時(shí)，又完善和加深了以前上課學(xué)到的基礎(chǔ)知識(shí)，發(fā)現(xiàn)其實(shí)里面有很多 能融會(huì)貫通的地方。以前覺(jué)得很復(fù)雜和很高深的知識(shí)，在自己動(dòng)手和詢問(wèn)老師和同學(xué)中，逐步解決了實(shí)際中開(kāi)發(fā)的問(wèn)題。我學(xué)到了很多在平時(shí)上課沒(méi)有學(xué)到的知識(shí)，豐富了我的專業(yè)知識(shí)能力。我今后會(huì)將此系統(tǒng)逐 步完善，趨于成熟，并與網(wǎng)絡(luò)課程緊密結(jié)合，使其成為一個(gè)較完善的專用教學(xué)平臺(tái)。本系統(tǒng)只是一個(gè)專用的學(xué)生學(xué)籍在線管理平臺(tái)的一部分。系統(tǒng)管理員具有管理用戶和功能模塊管理權(quán)限，教師具有對(duì)所有學(xué)生信息進(jìn)行查看、進(jìn)行對(duì)學(xué)生分?jǐn)?shù)添加的權(quán)限。 實(shí)現(xiàn)了基本的用戶和用戶權(quán)限管理，可以對(duì)學(xué)生信息進(jìn)行錄入、修改、刪 除等的管理；可以對(duì)教師信息進(jìn)行修改、添加和刪除。 結(jié) 論 本系統(tǒng)采用瀏覽器 /服務(wù)器體系結(jié)構(gòu)作為軟件結(jié)構(gòu)，應(yīng)用 SQL Server 2020 以及 技術(shù)，實(shí)現(xiàn)了學(xué)籍的管理工作，在時(shí)間和空間上便利了用戶，具有較強(qiáng)的實(shí)用性。所以模塊的功能正常運(yùn)行。 圖 16 添加信息錯(cuò)誤時(shí)提示錯(cuò)誤 測(cè)試結(jié)果 系統(tǒng)在上述軟硬件環(huán)境下分別對(duì)學(xué)生，教師和系統(tǒng)管理員的詳細(xì)設(shè)計(jì)功能做出測(cè)試，結(jié)果能夠達(dá)到預(yù)期功能。以上三個(gè)控件控制了用戶添加信息操作和指示錯(cuò)誤的信息產(chǎn)生原 因，如圖 15。兩次密碼設(shè)置一直，用了驗(yàn)證控件 CompareValidator，在測(cè)試輸入密碼必須一致才能進(jìn)行添加用戶。 圖 14 用戶登錄信息錯(cuò)誤提示 戶信息錯(cuò)誤時(shí)，提示信息 在測(cè)試添加用戶時(shí)，當(dāng)輸入用戶名為空，用戶密碼兩次不一致，電子郵件不能為空或者電子郵件輸入格式不正確時(shí)，將有提示信息說(shuō)明錯(cuò)誤。CPU P4 ,內(nèi)存 DDR2 1G, SQL SERVER 2020，安裝了Visual studio2020，配置好了 IIS。ErrorMessage= + (\n, ))。)/script)。 (script(39。 } if ( == true) { score = new Score()。)/script)。 protected void AddBtn_Click(object sender, EventArgs e) { if ( = 1) (scrip