【正文】 L 構(gòu)件中繼承其屬性和功能來創(chuàng)建自己的構(gòu)件 ,以恰好滿足應(yīng)用程序的需要。使用 ODBC 標(biāo)準(zhǔn)接口 ,ASP 也可以訪問DBASE 和 Paradox 的文件。因?yàn)榇鎯?chǔ)過程是在服務(wù)器端執(zhí)行的，只把結(jié)果返回到客戶端，這樣一方面可以降低網(wǎng)絡(luò)進(jìn)行數(shù)據(jù)交互的開銷，另一方面使系統(tǒng)更加容易維護(hù)，并且能保持?jǐn)?shù)據(jù)的一致性。 end function % html head titlepoll example/title /head body form name=languages method=post action= pwhat is your favoutrite language?/p % 39。 lars(language) amp。 (database) amp。calculate value which will be used to calculate percentage percent = 100 / i 39。set pixelwidth of table cells to percentage number table cellpadding=0 cellspacing=0 10 width= amp。對于計(jì)算機(jī)科學(xué)而言，數(shù)據(jù)的含義極為廣泛，凡是可存儲(chǔ)的信息，如文本、圖象、聲音等都可以通過二進(jìn)制編碼而形成數(shù)據(jù)）為對象，指為了滿足某種特定應(yīng)用的需要，按照一定的數(shù)據(jù)模型 在計(jì)算機(jī)系統(tǒng)中組織、存儲(chǔ)和使用數(shù)據(jù)的數(shù)據(jù)集合。 SQLSERVER2021 簡介 Microsoft SQLserver2021 是一種關(guān)系式數(shù)據(jù)庫，關(guān)系式數(shù)據(jù)庫由一系列表組成，表又由一系列行和列組成，每一行是一個(gè)記錄，每一列是一個(gè)字段，每個(gè)字段有一個(gè)字段名，字段名在一個(gè)表中不能重復(fù)。因此，掌握好 SQL 對 JSP編程是非常重要的。假設(shè)有一個(gè)名為 _table 的表，包含名字和地址兩個(gè)字段，要得到 Bill Gates 的 地址 ,你可以使用下面的查詢： SELECT from _table WHERE name=”Bill Gates” SELECT 語句的結(jié)構(gòu)看起來很直觀。由于關(guān)系數(shù)據(jù)庫采用人們比較容易理解和接受的二維表格來組織數(shù)據(jù)，發(fā)展迅速，已成為數(shù)據(jù)庫產(chǎn)品的主流。本系統(tǒng)是以 asp 語言為基礎(chǔ)進(jìn)行開發(fā)的。對于計(jì)算機(jī)科學(xué)而言，數(shù)據(jù)的含義極 為廣泛，凡是可存儲(chǔ)的信息，如文本、圖象、聲音等都可以通過二進(jìn)制編碼而形成數(shù)據(jù)）為對象，指為了滿足某種特定應(yīng)用的需要，按照一定的數(shù)據(jù)模型在計(jì)算機(jī)系統(tǒng)中組織、存儲(chǔ)和使用數(shù)據(jù)的數(shù)據(jù)集合。 5． 2 具體模塊劃分 1 .主頁面 模塊 主頁面中上部包含：①標(biāo)題：歡迎光臨網(wǎng)上投票 ②此刻訪問的時(shí)間和訪問本站的人數(shù)等部分。 4．投票瀏覽模塊 投票型號(hào)瀏覽： 成功登陸后的用戶可以分頁瀏覽投票投票型 號(hào)，并將想要的投票提交到填寫訂單頁面。 ③ 用錯(cuò)誤資料調(diào)試 。charset=GB2312% ☆ 對于各個(gè)模塊接參數(shù)的格式進(jìn)行了統(tǒng)一 ☆ 本程序以中小型為基礎(chǔ)，采用 JDBC 數(shù)據(jù)源進(jìn)行連接數(shù)據(jù)庫這就決定了本系統(tǒng)的先天缺陷。 魯迅說，世上倘若有完全的人，那么配活的也就相當(dāng)有限。 指導(dǎo)老師的悉心指導(dǎo)和大力支持，在總體結(jié)構(gòu)、功能的把握上給予了非常大的幫助，同時(shí)根我們提供了非 常優(yōu)越的設(shè)計(jì)環(huán)境，并對我在編程、數(shù)據(jù)庫設(shè)計(jì)等細(xì)節(jié)工作上給予了耐心的指導(dǎo)，對于我們小組順利完成這次畢業(yè)設(shè)計(jì)起到了關(guān)鍵性的作用。 and he made first the Ainur, the Holy Ones, that were the offspring of his thought, and they were with him before aught else was made. And he spoke to them, propounding to them themes of music。 but some began to attune their music to his rather than to the thought w hich they had at first. Then the discord of Melkor spread ever wider, and the melodies which had been heard before foundered in a sea of turbulent sound. But Il 鷙 atar sat and hearkened until it seemed that about his throne there was a raging storm, as of dark waters that made war one upon another in an endless wrath that would not be assuaged. Then Il 鷙 atar arose, and the Ainur perceived that he smiled。 Then the Ainur were afraid, and they did not yet prehend the words that were said to them。 And many other things Il 鷙 atar spoke to the Ainur at that time, and because of their memory of his words, and the knowledge that each has of the music that he himself made, the Ainur know much of wha t was, and is, and is to e, and few things are unseen by them. Yet some things there are that they cannot see, neither alone nor ta king counsel together。Behold your Music! This is your minstrelsy。Mighty are the Ainur, and mightiest among them is Melkor 。 and a sound arose of endless interchanging melodies woven in harmony that passed beyond hearing into the depths and into the heights, and the places of the dwelling of Il 鷙 atar were filled to overflowing, and the music and the echo of the music went out into the Void, and it was not void. Never since have the A inur made any music like to this music, though it has been said that a greater still shall be made before Il鷙 atar by the choirs of the Ainur and the Children of Il 鷙 atar after the end of days. Then the themes of Il鷙 atar shall be played aright, and ta ke Being in the moment of their utterance, for all shall then understand fully his intent in their part, and each shall know the prehension of each, and Il 鷙 atar shall give to their thoughts the secret fire, being well pleased. But now Il 鷙 atar sat and hearkened, and for a great while it seemed good to him, for in the music there were no flaws. But as the theme progressed, it came into the heart of Melkor to interweave matters of his own imagining that were not in accord with the theme of Il 鷙 atar, for he sought therein to increase the power and glory of the part assigned to himself. To Melkor among the A inur had be en given the greatest gifts of power and knowledge, and he had a share in all the gifts of his brethren. He had gone often alone into the void places seeking the Imperishable Flame。我會(huì)在以后的工作和學(xué)習(xí)中不斷完善自己，為我最熱愛的母校爭光，為自己翻開輝煌的新篇章。 第八章 附 錄 8． 1 致謝 在本次畢業(yè)設(shè)計(jì)過程中，得到了指導(dǎo)老師的指導(dǎo)與支持。 對團(tuán)隊(duì)的協(xié)作，對軟件開發(fā)方法和手段，有了一定的認(rèn)識(shí)，豐富了我的軟件開發(fā)的經(jīng)驗(yàn)，提高了程序編寫的水平，并加深理解了許多課程中、手機(jī)本上學(xué)到的知識(shí)和理論。 ★當(dāng)大量用戶同時(shí)對數(shù)據(jù)庫進(jìn)行訪 問時(shí)，效率低，有的用戶訪問失敗。 ① 用正常資料調(diào)試。 3．用戶登錄模塊 ①用戶登錄包括：登錄名稱，輸入密碼。數(shù)據(jù)庫系統(tǒng)會(huì)提供相應(yīng)的機(jī)制，保證這種共享在有序的條件下進(jìn)行，可以避免因?yàn)橥蕉斐傻腻e(cuò)誤。 3． include file 表示的是靜態(tài)的插入一個(gè)文件。 4． 2 數(shù)據(jù)庫表設(shè)計(jì)： 本系統(tǒng)的數(shù)據(jù)庫其中包括九個(gè)表，分別為 投票投票型號(hào) 表 book, 用戶注冊表 member, 管理員表 admin, 投票類型表 booktype, 評論表 mont, 購物車表 gouwuche, 新聞表 news，定單表 num,定單詳細(xì)信息表 orderbook。 Updata {table name}[{ table name }]where clause （ 4） 用 select 創(chuàng)建記錄和表 insert table(first_column,second_column) select another_first_column,another_sencond_column from anothertable where another_first_column=’ copy me’ 這條語句從 anothertable 拷貝記錄到 table 中，只有 anothertable中字段為 another_first_column 的值為 copy me 的記錄被拷貝。此時(shí)查詢結(jié)果是來自一個(gè)或多個(gè)表。 “結(jié)構(gòu)化查詢語言”（ SQL）簡介 “結(jié)構(gòu)化查詢語言”（ SQL）是數(shù)據(jù)庫的標(biāo)準(zhǔn)語言。數(shù)據(jù)庫系統(tǒng)會(huì)提供相應(yīng)的機(jī)制，保證這種共享在有序的條件下進(jìn)行，可以避免因?yàn)橥蕉斐傻腻e(cuò)誤。 %br loop 39。 lars(votes) amp。loop through and total up number of votes for all records do while not 39。define all variables that will be used dim i, percent 39。 value=39。 。 1．用 SQL 語句和存儲(chǔ)過程進(jìn)行數(shù)據(jù)更新 通過數(shù)據(jù)源對象返回的查詢集不僅包含了數(shù)據(jù)，而且也包含了元數(shù)據(jù)（ metadata） ,在有些時(shí)候元數(shù)據(jù)可能比數(shù)據(jù)本身還要大，所以最好采用 SQL 語句來更新數(shù)據(jù)。 ASP 的 Data SQL 提供了 ASP 用于訪問數(shù)據(jù)庫的對象 ,包括建立連接、訪問數(shù)據(jù)、查詢內(nèi)庫等等。 ASP 提供的構(gòu)件庫稱為 VCL,它提供了在 Delphi 上開發(fā)應(yīng)用的基石。 ASP 基本概念介紹 ASP 的基本形式 一些早期的具有 OOP 性能的程序語言如 C++,Pascal,Smalltalk 等，雖然具有面向?qū)ο蟮奶卣?，但不能輕松地畫出可視化對象，與用戶交互能力較差，程序員仍然要編寫大量的代碼。 第三章 投票管理系統(tǒng)編程環(huán)境現(xiàn)狀及設(shè)計(jì)目標(biāo)簡介 編程環(huán)境的選擇 面向?qū)ο蟮某绦蛟O(shè)計(jì) (ObjectOriented Programming，簡記為 OOP)是 ASP 誕生的基礎(chǔ)。 5．提供名稱自動(dòng)更正功能 自動(dòng)解決當(dāng)用戶重新命名數(shù)據(jù)庫對象時(shí)出現(xiàn)的常見負(fù)面效應(yīng)。它幫助用戶方使地得到所需信息，并提供強(qiáng)大的數(shù)據(jù)處理工具。其中：