【正文】 and if he repeat the offence, for two years。and if he appear to throw dirt upon his father39。neither shall he be a merchant, or do any service for privatepersons unless they equally serve him, except for his father or hismother, and their fathers and mothers。 and in the second place, they must assign the oc cupationto that class of men whose corruption w ill be the least injury tothe state。 and then instead of behavingto them as friends, and showing the duties of hospitality to hisguests, treats them as enemies and captive s who are at his mercy,and will not release them until they have paid the most unjust,abominable, and extortionate ransomthese are the sort of practices,and foul evils they are, which cast a reproach upon the succour ofadversity. And the legislator ought always to be devising a remedy forevils of this nature. T here is an ancient saying, which is also a trueoneTo fight against two opponents is a difficult thing, as isseen in diseases and in many other cases. And in this case also thewar is against two enemieswealth and poverty。 or if, in consequence ofsome fate or necessity, the best women were pelled to followsimilar callings, then we should know how agreeable and pleasant allthese things are。they seek to satisfy ourneeds and equalize our possessions. Let us then endeavour to seewhat has brought retail trade into il lodour, and wherein, lies thedishonour and unseemliness of it, in order that if not entirely, wemay yet partially, cure the evil by legislation. To effect this isno easy matter, and requires a great deal of virtue. Cleinias. What do you mean? Athenian Stranger. Dear Cleinias, the class of men is smalltheymust have been rarely gifted by nature, and trained byeducationwho, when assailed by wants and desires, are able to holdout and observe moderation, and when they might make a great deal ofmoney are sober in their w ishes, and prefer a moderate to a largegain. But the mass of mankind are the very opposite: the ir desires areunbounded, and when they might gain in moderation they prefer gainswithout limit。and let them inscribe their laws on a column in front of the courtof the wardens of the agora, that they may be clear instructors ofthose who have business in the agora. Enough has been said in what haspreceded about the wardens of the city, and if anything seems to bewanting, let them municate with the guardians of the law, and writedow n the omission, and place on a column in the court of the wardensof the city the primary and secondary regulations which are laiddown for them about their office. After the practices of adulteration naturally follow the practicesof retail trade. Concerning these, we will first of all give a word ofcounsel and reason, and the law shall e afterwards. Retail trade ina city is not by nature intended to do any harm, but quite thecontrary。 特此聲明！ 作者簽名： 2020 年 06 月 日 veother case beincurable. If any one convict in a court of law a stranger or aslave of a theft of public property, let the court determine whatpunishment he sha ll suffer, or what penalty he shall pay, bearing inmind that he is probably not incurable. But the citizen w ho has beenbrought up as our citizens w ill have been, if he be fou nd guilty ofrobbing his country by fraud sold anyadulterated goods, in addition to losing the goods themselves, shallbe beaten with stripesa stripe for a drachma, according to theprice of the goods。 （ 5）學(xué)?？梢怨紝W(xué)位論文的全部或部分內(nèi)容（保密學(xué)位論文在解密后遵守此規(guī)定）。 （ 3）學(xué)?？梢詫W(xué)術(shù)交流為目的復(fù)制、贈送和交換學(xué)位論文。 關(guān)于學(xué)位論文使用權(quán)和研究成果知識產(chǎn)權(quán)的說明： 本人完全了解成都信息工程學(xué)院有關(guān)保管使用學(xué)位論文的規(guī)定，其中包括： （ 1）學(xué)校有權(quán)保管并向有關(guān)部門遞交學(xué)位論文的原件與復(fù)印件。文中除了特別加以標(biāo)注地方外，不包含他人已經(jīng)發(fā)表或撰寫過的研究成果，也不包含為獲得成都信息工程學(xué)院或其他教學(xué)機(jī)構(gòu)的學(xué)位或證書而使用過的 材料。 致 謝 本文是在方睿老師的熱情關(guān)心和指導(dǎo)下完成的，他淵博的知識和嚴(yán)謹(jǐn)?shù)闹螌W(xué)作風(fēng)使我受益匪淺，對順利完成本課題起到了極大的作用。 [7] (美 )Kris Jamsa， Konrad King， Andy Anderson，吳悅，吳沖華 .北京 :HTML amp。 [5] 吉根林 ， 崔海源 . [M].北京 :電子工業(yè)出版社 ,。 [3] (美 ) Jason Beres，袁鵬飛 .21天學(xué)通 Visual Studio .NET 2020[M].北京 :人民郵電出版社 ,2020。 參考文獻(xiàn) [1] (美 )萊特 (Wright,C.)， 胡俊哲 ， 英宇 .C編程技術(shù)與技巧 [M].北京 :機(jī)械工業(yè)出版社 ， 。同時，還與另一位同學(xué)所設(shè)計與實(shí)現(xiàn)的“作業(yè)在線批閱系統(tǒng)”集 成在一起，形成 了 一個真正實(shí)用的、功能完善的作業(yè)提交 審閱 系統(tǒng) 。是一個實(shí)驗(yàn)性的系統(tǒng)。同時設(shè)計并實(shí)現(xiàn)了一個簡單的作業(yè)在線提交系統(tǒng)。 4. 系統(tǒng)構(gòu)架和代碼設(shè)計還需要進(jìn)一步優(yōu)化，以提高系統(tǒng)的運(yùn)行效率，降低所耗的系統(tǒng)資源，為用戶提供更好的服務(wù)。 3. 可移植性差 :只能在安裝了 Microsoft .NET Framework 、 Microsoft SQL Server 2020 數(shù) 據(jù) 庫 和 IIS 上的 Windows 系統(tǒng)上運(yùn)行。管理員可以任意更 改任何用戶的密碼信息，給安全埋下隱患。由于時間和經(jīng)驗(yàn)的不足，作業(yè)在線提交系統(tǒng)存在的問題及進(jìn)一步完善的對策。 測試結(jié)論 以上的每個測試案例是單獨(dú)進(jìn)行測試的，還需要進(jìn)一步進(jìn)行交叉案例的測試。 4. 修改后數(shù)據(jù)與預(yù)期值一致 。 2. 能正確記錄提交的作業(yè)。 5. 點(diǎn)擊“退出”，是否能順利退出模塊。 3. 教師發(fā)布作業(yè)成績和標(biāo)準(zhǔn)答案之后學(xué)生是否能查看到相對應(yīng)的正確的成績和答案 。 學(xué)生模塊測試 測試方法 1. 順利登陸 學(xué)生 模塊后， 在教師已經(jīng)發(fā)布作業(yè)的情況下，看是否能正確選擇教師并查看到作業(yè)內(nèi)容。 3. 能順利刪除想要刪除的數(shù)據(jù)。 測試結(jié)果 1. 能順利按照預(yù)期值添加進(jìn)數(shù)據(jù)庫。 3. 最后進(jìn)行刪除操作，是否能順利從表中刪除想要刪除的信息。 5 系統(tǒng)測試與測試結(jié)論 管理員模塊測試 測試方法 1. 順利登陸管理員模塊后，在添加用戶頁面添加若干用戶，看是否能順利添加進(jìn)數(shù)據(jù)庫。+Session[id].ToString()+39。+()+39。+()+ 39。+()+39。++39。同管理員修改 用戶信息的原理一樣， 在文本框 中 輸入要修改的用戶信息后，點(diǎn)擊 “ 修改 ”按鈕， 系統(tǒng)通過 UPDATE 語句更新 person_info 表中的 相應(yīng) 字段 。 } 普通用戶修改資料 普通用戶登陸到系統(tǒng)后可以通過點(diǎn)擊“修改用戶資料”按鈕來修改自己的個人信息。 =false。 =false。 =false。 =tempRow[content].ToString()。 =tempRow[name].ToString()。 DataRow tempRow= [0].Rows[0]。+[id]+39。 if(Session[role].ToString()==2) showAnswer()。如果是學(xué)生用戶，則只能查看此頁面。 } 查看標(biāo)準(zhǔn)答案 學(xué)生登陸后，點(diǎn)擊 “ 標(biāo)準(zhǔn)答案查看 ” 按鈕，跳轉(zhuǎn)到 頁面，便可以看到該教師目前已發(fā)布標(biāo)準(zhǔn)答 案的作業(yè)列表，系統(tǒng)從 student_work_info表 、 person_info 表 和 teacher_work_info 表 提取教師姓名字段 、 作業(yè)題目字段和提交時間字段綁定到列表中 并顯示到頁面上。 =false。 =false。 =false。 ()。 =tempRow[remark].ToString()。 =tempRow[title].ToString()。 =tempRow[name].ToString()。 =[id].ToString()。39。 =false。//學(xué)生下載提交時不顯示 } if(Session[x].ToString()==query) { showQuery()。 =true。 1. 判斷作業(yè)類型 if(Session[x].ToString()==download) { showDownload()。系統(tǒng)從 student_work_info 表、teacher_work_info 表和 person_info 表 提取 教師姓名字段 、 作業(yè)題目字段和提交時間字段綁定到列表中 并 顯 示 到 頁 面 上 。 }