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t. want to drop from the car to the ground. He sincerely believed that he would shatter like glass. So the guards helped him down, cooing still. T hey set him down facing the train. I t was such a dinky train now. There was a lootive, a tender, and three little boxcars. The last boxcar was the railroad guards39。s car owlishly, cooed calmingly. They had never dealt w ith Americans before, but they surely understood this general sort of freight. They knew that it was essentially a liquid which could be induced to flow slowly toward cooing and light. It was nighttime. The only light outside came from a single bulb which hung from a polehigh and far away. All was quiet outside, except for the guards, who cooed like doves. And the liquid began to flow. Gobs of it built up in the doorway, plopped to the ground. Billy was the nexttolast human being to reach the door. The hobo was the last. The hobo could not flow, could not plop. He wasn39。 Listen on the tenth night the peg was pulled out of the hasp on Billy39。s room. Her drawers were dumped. her closet was empty. Heaped in the middle of the room were all the possessions she could not take on a honeymoon. She had a Princess telephone extension all her ownon her windowsill Its tiny night light stared at Billy. And then it rang. Billy answered. There was a drunk on the other end. Bi 39。s partners in the New Holiday Inn. There was a full moon. Billy got out of bed in the moonlight. He felt spooky and luminous felt as though he were wrapped in cool fur that was full of static electricity. He looked down at his bare feet. They were ivory and blue. Billy now shuffled down his upstairs hallway, knowing he was about to be kidnapped by a flying saucer. The hallway was zebra striped with darkness and moonlight. The moonlight came into the hallway through doorways of the empty rooms of Billy39。t need to be jiggled to sleep. Valencia was snoring like a bandsaw. T he poor woman didn39。 特此聲明! 作者簽名: 2020 年 6 月 10 日 This boothwn outside, each car became a single anism which ate and drank and excreted through its ventilator s. It talked or sometimes yelled through its ventilators, too. In went water and loaves of blackbread and sausage and cheese, and out came shit and piss and language. Human beings in there were excreting into steel helmets, which were passed to the people at the ventilators, who dumped them. Billy was a dumper. The human beings also passed canteens, which guards would fill with water. When food came in, the human beings were quiet and trusting and beautiful. They shared. Human beings in there took turns standing or lying down. The legs of those who stood were like fence posts driven into a warm., squirming, fatting, sighing earth. The queer earth was a mosaic of sleepers who nestled like spoons. Now the train began to creep eastward. Somewhere in there was Christmas. Billy Pilgrim nestled like a spoon with the hobo on Christmas night, and he fell asleep, and he tr aveled in time to 1967 againto the night he was kidnapped by a flying saucer from Tralfamadore. Four Billy Pilgrim could not sleep on his daughters wedding night. He was forty four. The wedding had taken place that afternoon in a gaily striped tent in Billy39。 ( 5)學(xué)校可以公布學(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(zèng)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(shí)產(chǎn)權(quán)的說(shuō)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(guò)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(guò)的 材料。我們共同經(jīng)歷成長(zhǎng)中的一點(diǎn)一滴,無(wú)論是歡笑還是淚水,我都將銘記一生。 致 謝 本文是在張仕斌老師和陳念偉老師的熱情關(guān)心和指導(dǎo)下 完成的,他們淵博的知識(shí)和嚴(yán)謹(jǐn)?shù)闹螌W(xué)作風(fēng)使我受益匪淺,對(duì)順利完成本課題起到了極大的作用。 [7] 鄧文淵 , 陳惠貞 , 陳俊榮 . ASP 與網(wǎng)頁(yè)數(shù)據(jù)庫(kù)設(shè)計(jì) [M]. 北京:中國(guó)鐵道出版社 , 2020。 [5] Richard Anderson Chris Blexrud. ASP 高級(jí)編程 [M]. 北京:機(jī)械工業(yè)出版社 , 2020。 [3] 孫麗君 ,吳紅普 . ASP 編程基礎(chǔ)及應(yīng)用實(shí)例集錦 [M]. 北京:人民郵電出版社 , 2020。 參考文獻(xiàn) [1] 黃明,梁旭. Asp 信息系統(tǒng)設(shè)計(jì)與開(kāi)發(fā)實(shí)例 [M].北京:機(jī)械工業(yè)出版社, 2020。 系統(tǒng)還存在有以下不足之處: ( 1)采用了 B/S 的結(jié)構(gòu)模式 ,較之于其它版本開(kāi)發(fā)的程序 ,比如 C/S 結(jié)構(gòu)模式 ,雖然提高了用戶操作上的簡(jiǎn)單性 .系統(tǒng)數(shù)據(jù)的安全性能有所折扣 .對(duì)于網(wǎng)上廣泛流傳的各種 ASP技術(shù)方面漏洞 ,系統(tǒng)還需要考慮有效的規(guī)避防護(hù)措施 .系統(tǒng)用戶登錄方面 ,還需要添加圖形數(shù)字驗(yàn)證碼驗(yàn)證功能 ,以提高登錄安全性 . ( 2)檢索系統(tǒng)部分,只完成了對(duì)目錄的檢索功能,還不能夠完成文件全文檢索這一擴(kuò)展功能。 ( 4)非實(shí)時(shí)傳送文件,不需要其他用戶同時(shí)在線。 ( 2)信息加密,安全性提高了很多。 21 世紀(jì) 互聯(lián)網(wǎng)呈現(xiàn)出的是一種全面復(fù)蘇、蓬勃發(fā)展、多元開(kāi)拓、廣泛應(yīng)用的發(fā)展態(tài)勢(shì)。隨著網(wǎng)絡(luò)的高速發(fā)展,該系統(tǒng)有廣闊的應(yīng)用前景。 ( 4) 系統(tǒng)具有良好的可擴(kuò)充性,能根據(jù) 用戶不同的 要求,進(jìn)行相應(yīng)的擴(kuò)展 ,以進(jìn)一步完善系統(tǒng)的功能。 ( 2)用戶 需要身份驗(yàn)證,在設(shè)計(jì)中 通過(guò)身份驗(yàn)證可以判斷該用戶有沒(méi)有修改文件的權(quán)利。 ( 1) 系統(tǒng)的設(shè)計(jì)要求 體現(xiàn)了可行性 ,通過(guò) 文件共享文件系統(tǒng)可以真實(shí)的讓用戶體會(huì)到該系統(tǒng)的優(yōu)點(diǎn)。 該系統(tǒng)側(cè)重于個(gè)人文件的存儲(chǔ),上傳,共享和目錄檢索。包括用戶權(quán)限的分類,用戶上傳文件的管理,如圖 14 所示 。 圖 12 文件上傳界面 ( 5)目錄查詢,對(duì)文件目錄進(jìn)行查詢,如圖 13 所示。 圖 10 用戶信息顯示界面 ( 3)目錄創(chuàng)建,用戶可以自己創(chuàng)建文件夾,并對(duì)文件加密,如圖 11 所示。 ( 1)用戶注冊(cè),新用戶進(jìn)行注冊(cè)功能,如圖 9 所示。 開(kāi)始之初,當(dāng)用戶進(jìn)入本系統(tǒng)的各個(gè)頁(yè)面時(shí),要想返回到主頁(yè)或是該頁(yè)的上一頁(yè)時(shí),都是通過(guò)瀏覽器的“返回”按鈕來(lái)實(shí)現(xiàn)的,特別是瀏覽很多頁(yè)面后要回到主頁(yè)必須多次按下瀏覽器的“返回”按鈕,這樣對(duì)用戶來(lái)講是極其不方便的,后來(lái)根據(jù)系統(tǒng)運(yùn)行流程在不同的頁(yè)面都加上了“返回”鏈接,這樣就能快速跳轉(zhuǎn)到相應(yīng)的頁(yè)面了。經(jīng)過(guò)同學(xué)們反復(fù)的測(cè)試,返回很多的不同信息,根據(jù)這些信息,我再次對(duì)該系統(tǒng)進(jìn)行了一些小的修改,以保證該系統(tǒng)投入使用后能安全、可靠、正常的工作,比如在這一階段的修改有: 在程序運(yùn)行過(guò)程中,當(dāng)進(jìn)入系統(tǒng)主界面時(shí),當(dāng)點(diǎn)擊后退時(shí),程序返回不到系統(tǒng)登陸界面,在這個(gè)過(guò)程中,作者發(fā)現(xiàn)是由于 受 session 中變量的影響。這項(xiàng)測(cè)試主要還是自己完成的,我把各模塊中的所有程序按次序串聯(lián)起來(lái)進(jìn)行調(diào)試,經(jīng)調(diào)試修改后每一模塊內(nèi)各程序間終于建立了正確的控制 關(guān)系,并實(shí)現(xiàn)了各模塊之間正確的通訊。因此也對(duì)本系統(tǒng)進(jìn)行了以下兩方面的功能測(cè)試。所以經(jīng)過(guò)程序代碼的測(cè)試后,還要進(jìn)行程序功能上的測(cè)試。在實(shí)現(xiàn)本系統(tǒng)的過(guò)程中也對(duì)此進(jìn)行了大量的測(cè)試。這些數(shù)據(jù)是最易被忽略的,也是最易使程序出錯(cuò)的,所以此處的調(diào)試花費(fèi)了很長(zhǎng)一段時(shí)間,經(jīng)反復(fù)的調(diào)試和修改后,系統(tǒng)建立了比較完善的異常處理機(jī)制。 ( 2) 異常數(shù)據(jù)調(diào)試:在執(zhí)行本系統(tǒng)中的處理程序時(shí)要考慮一些臨界數(shù)據(jù)。測(cè)試數(shù)據(jù)是經(jīng)過(guò)精心挑選的,使程序和模塊中的每一條語(yǔ)句都能得到執(zhí)行,即能夠測(cè)試程序中的任一邏輯通路。 程序代碼測(cè)試 本系統(tǒng)在上一部分具體實(shí)現(xiàn)中的同時(shí)還進(jìn)行了仔細(xì)的測(cè)試,在系統(tǒng)各個(gè)模塊的編寫中就開(kāi)始測(cè)試,以減少在后面集成測(cè)試中出現(xiàn)問(wèn)題的機(jī)率,也減少在集成測(cè)試中的發(fā)現(xiàn)問(wèn)題后修改源程序的難度。在各個(gè)功能中,都是通過(guò)超鏈接進(jìn)行信息的輸出。 ( 3) 處理:從數(shù)據(jù)表中獲取輸入數(shù)據(jù)判斷是否為空,空則重新輸入。 ( 1) 功能:獲取從 頁(yè)面?zhèn)鱽?lái)的數(shù)據(jù),檢索 User 數(shù)據(jù)表,核對(duì)用戶密碼,如果該用戶 名和密碼存在,顯示登陸成功,否則進(jìn)行注冊(cè)處理。若記錄集不為空,說(shuō)明該用戶已經(jīng)存在,給出提示,重新輸入;若記錄集為空,則說(shuō)明該用戶名還沒(méi)人使用,將用戶信息插入數(shù)據(jù)庫(kù)。連接數(shù)據(jù)庫(kù)。讀取 form 表單提交的數(shù)據(jù),檢查用 戶的輸入是否符合規(guī)范。用戶在相應(yīng)的位置輸入個(gè)人資料,按下“注冊(cè)”就將數(shù)據(jù)提交到 頁(yè)面 中。 ( 2) 輸入:名稱,密碼,重復(fù)密碼, OICQ,郵箱,性別,年齡。用戶 的基 本信息保存在數(shù)據(jù)庫(kù)中。 ( 5) 退出管理 使用退出管理功能,頁(yè) 面便回到了管理登陸界面,若要再進(jìn)入,就要重新登陸。在此頁(yè)面上,除了上面講