【正文】 最后一個文件外的任意一個播放完選擇的多媒體文件后，繼續(xù)播放下面多個多媒體文件 播放完選擇的多媒體文件后，繼續(xù)播放下面多個多媒體文件 通過 第 23 頁 共 26 頁 多媒體文件 3）等待播放完畢，觀察接下來的播放情況 11 循環(huán)播放 循 環(huán) 播放播放列表中的多媒體文件 1）默認(rèn)下，自動由第一個多媒體文件開始播放到最后一個多媒體文件，等待最后一個多媒體文件播放完畢，觀察接下來的情況 2）選擇播放最后一個多媒體文件，等待播放完畢，觀察接下來的情況 3）在操作里面 選擇循環(huán)播放后，重復(fù)1）， 2）觀察情況 播放完畢最后一個多媒體文件后，自動跳轉(zhuǎn)到播放列表中的第一個多媒體文件開始播放 播放完畢最后一個多媒體文件后，自動跳轉(zhuǎn)到播放列表中的第一個多媒體文件開始播放 通過 12 自動關(guān)閉 播 放 器自動關(guān)閉 1）點擊選擇，選擇播放，再選擇播放一次就關(guān)閉 2）從播放列表中任意一個多媒體文件開始播放，直至播放完最后一個多媒體文件，再觀察情況 播放完最后一個多媒體文件后自動關(guān)閉播放器 播放完最后一個多媒體文件后自動關(guān)閉播放器 通過 13 修改認(rèn)證 修 改 用戶名和密碼 1）輸入正確的舊用 戶名和密碼，再輸入新用戶名和密碼 2）輸入錯誤的用戶名和正確的密碼，再輸入新用戶名和密碼 3）輸入正確的用戶名和錯誤的密碼，再輸入新用戶名和密碼 4）輸入錯誤的用戶名和密碼，再輸入新用戶名和密碼 5）用新用戶名和密碼登陸播放器 在 1）情況下修改成功，能夠用新用戶名和密碼登陸播放器；在 2），3）， 4）情況下修改失敗，將彈出出錯提示框，不能用新用戶名和密碼登陸播放器 在 1）情況下修改成功，能夠用新用戶名和密碼登陸播放器；在 2），3）， 4）情況下修改失敗，將彈出出錯提示框，不能用新用戶名和密碼登陸播放器 通過 第 24 頁 共 26 頁 結(jié) 論 在如今網(wǎng)絡(luò)發(fā)展飛速的時代，多媒體的發(fā)展更是日新月異，而不論是生活還是工作中，都強烈的需求著多媒體技術(shù)和多媒體軟件。 本播放器的界面設(shè)計和功能的組合都極大的滿足了人們的日常操作習(xí)慣，也順應(yīng)了網(wǎng)絡(luò)娛樂發(fā)展的需求。而自動關(guān)閉 功能卻是最大化的簡化用戶的手動操作，為用戶全身心享受音樂和電影等多媒體提供完美的服務(wù)。 2） 在選擇如何實現(xiàn)身份認(rèn)證的過程中，難以確定是用數(shù)據(jù)庫連接還是用文件讀寫，以及具體手段的實現(xiàn)方法的確立。 在項目開發(fā)中， 靈活的應(yīng)用了大學(xué)中 所學(xué)到的知識，通過實踐來強化了我的知識基礎(chǔ)。雖然由于我個人的能力有限，沒能更好的實現(xiàn)和完善項目，但這并不能影響項目在多媒體發(fā)展史上的存在，這也是我為多媒體技術(shù)的發(fā)展和推廣所能盡的一份心。 [2] 孔長征 ,李興旺 . 程實例教程 [M].北京 :北京電子希望出版社 ,。 [4] 精銳創(chuàng)作組 .Visual [M].北京 :人民郵電出版社 ,2020年 11 月 。 [7] 李鴻吉 .Visual Basic高級編程技術(shù) (從 )(附光盤 )[M].北京 :科學(xué)出版社 ,20200101。 第 25 頁 共 26 頁 致 謝 本文是在王祖儷老師的熱情關(guān)心和指導(dǎo)下完成的，從審題，到資料的收集，項目開發(fā)工具的選取，項目功能的設(shè)定，以及開發(fā)的全過程，王祖儷老師都給予最大的幫助和支持。她 孜孜不倦的工作態(tài)度和嚴(yán)謹(jǐn)求實的工作作風(fēng) ，無形中成為我完成項目精神支柱。 在此，我向 導(dǎo)師表示崇高的敬意和由衷的感謝 ! 最后向在百忙之中評審本文的各位專家、老師表示衷心的感謝！ 作者簡介： 姓 名： 楊 攀 性別： 男 出生年月： 1982 年 8月 19日 民族： 漢族 Email:第 26 頁 共 26 頁 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。除非另有說明，本文的工作是原始性工作。 2）學(xué)校可以采用影印、縮印或其他復(fù)制方式保存學(xué)位論文。 4）學(xué)校可允許學(xué)位論文被查閱或借閱。 除非另有科研合同和其他法律文書的制約，本論文的科研成果屬于成都信息工程學(xué)院。 the fly sat upon the axletree of the chariot wheel, and said. What a dust do I raise? So are there some vain persons, that whatsoever goeths indeed! They could tell us something worth hearing, if they only knew how to talk. It39。s eve I was reading the book, and had lost myself in it so pletely, that I fot my usual New Year39。t know what that is! The journey of the witches on broomsticks is well enough known that journey is taken on St. John39。 but we have a wild journey, also which is national and modern, and that is the journey to Amack on the night of the New Year. All indifferent poets and poetesses, musicians, newspaper writers, and artistic notabilities, I mean those who are no good, ride in the New Year39。 for all bravery stands upon parisons. They must needs be violent, to make good their own vaunts. Neithe r can they be secret, and therefore not effectual。 beaucoup de bruit, peu de fruit: much bruit, little fruit Yet certainly there is use of this quality, in civil affairs. Where there is an opinion, and fame to be created, either of virtue, or greatness, these men are good trumpeters. Again, as Titus Livius noteth, in the case of Antiochus, and the Aetolians。 as if a man that negotiates between two princes, to draw them to join in a war against the third, doth extol the forces of either of them above measure, the one to the other: and sometimes, he that deals between man and man, raiseth his own credit with both by pretending greater interest than he hath in either. And in these, and the like kinds, it often falls out that somewhat is produced of nothing: for lies are sufficient to breed opinion, and opinion brings on substance. In military manders and soldiers, vainglory is an essential point。 and those mat are of solid and sober natures have more of the ballast, than of the sail. In fame of learning, the flight w ill be slow, without some feathers of ostentation. Q ui de contenmenda gloria libros scribunt, nomen suum inscribunt. Socrates, Ar istotle, Galen, were men firil of ostentation. Certainly vainglory helpeth to perpetuate a man\39。 and virtue was never so beholding to human nature, as it received his due at the second hand. Neither had the fame of Cicero, Seneca, Plinius Secundus, borne her age so well, if it had not been joined with some vanity in themselves: like unto varnish, that makes sealings not only shine, but last But all this while, when I speak of vainglory, I mean not of that property, that Tacitus doth attribute to Mucianus。 which is to be liberal of praise and mendation to others, in that wherein a man\39。 In mending another, you do your self right。 if he be superior, if he be not to be mended, you much less. Glorious men are the scorn of wise men。 the idols of parasites。s goods, neither shall heuse anything which is his neighbour39。 for these are the offences which are and have been, and willeve r be, the source of all the aforesaid evils. The greatest of themare excesses and insolences of youth, and are offences against thegreatest when they are done against religion。 and in the second degreegreat when they are mitted against private rites and sepulchres,and in the third degree (not to repeat the acts formerly mentioned),when insults are offered to parents。 and the f ifth kind is when the violation ofthe civil rights of an individual demands reparation. There shouldbe a mon law embracing all these cases. For we have already said ingeneral terms what shall be the punishment of sacrilege, whetherfraudulent or violent, and now we have to determine what is to bethe punishment of those w ho spea k or act insolently toward the G first we must give them an admonition which may be in thefollowing terms:No one who in obedience to the laws believed thatthere were