【導(dǎo)讀】隨著計(jì)算機(jī)的廣泛運(yùn)用，Inter的迅速發(fā)展，各種音頻視頻資源也在網(wǎng)上廣為流傳，這些資源看似平常，但已經(jīng)漸漸成為人們生活中必不可少的一部分了。于是各種播放器也。影響，帶來(lái)了許多不便，而對(duì)于大多數(shù)普通用戶(hù)，許多功能用不上，形同虛設(shè)。能播放RM，RMVB格式的視頻文件。此外，還能支持中文、日文、英文等語(yǔ)言界面。及各種播放器本身存在的缺陷和特點(diǎn)。其次，選擇了Windows自帶的WindowsMediaPlayer. WMV，RM，RMVB等，擁有播放菜單，能選擇節(jié)目，具備一般播放器的功能，如快進(jìn)，快退，音量調(diào)節(jié)等。播放模式也比較完善，有單曲，順序，循環(huán)，隨機(jī)播放等模式。

　　

【正文】 辟了一個(gè)線(xiàn)程去執(zhí)行一個(gè)線(xiàn)程函數(shù)，而這個(gè)線(xiàn)程函數(shù)就是程序中判斷播放文件是否停止的函數(shù)，此線(xiàn)程函數(shù)被設(shè)置成 500 毫秒執(zhí)行一次，因此占用的 CPU 資源也就更多了。 結(jié) 論 首先通過(guò)對(duì)各種音頻視頻文件編碼方式的研究，發(fā)現(xiàn)目前的音頻視頻文件超級(jí)解霸播放器 第 23 頁(yè) 共 25 頁(yè) 主要有 MP WMA、 AVI、 MPEG、 WMV， RM、 RMVB、 DIVX 等，其中音頻文件 MP3 以其良好的音質(zhì)和占用磁盤(pán)空間小 的優(yōu)點(diǎn)，成為了發(fā)展的主流。另一方面，對(duì)于視頻文件，想要達(dá)到畫(huà)面音質(zhì)優(yōu)秀，同時(shí)對(duì)磁盤(pán)空間占用小的難度很大，目前還沒(méi)有很好的解決方案，但是由 MPEG4 衍生出的 DIVX 已經(jīng)開(kāi)始朝著這個(gè)方向發(fā)展了，相信在不久的將來(lái)，一定可以實(shí)現(xiàn)。接著從對(duì)多語(yǔ)種音頻視頻播放器的開(kāi)發(fā)到測(cè)試，再將自主開(kāi)發(fā)的播放器和目前流行的幾款播放器軟件進(jìn)行的比較和分析，發(fā)現(xiàn)自己開(kāi)發(fā)的播放器占用資源雖然少，但功能不如目前流行的播放器那么強(qiáng)大，存在的漏洞數(shù)量也可能更多。所以目前流行的播放器之所以這么受歡迎，是因?yàn)槠渫獗砻烙^(guān)，功能復(fù)雜，安全可靠。雖然對(duì)硬 件要求更高，但是目前的主流硬件配置已經(jīng)遠(yuǎn)遠(yuǎn)高出播放器軟件對(duì)硬件的要求。最后，多語(yǔ)種音頻視頻播放器開(kāi)發(fā)的任務(wù)已經(jīng)完成，除了能正常播放常見(jiàn)的音頻視頻文件，如 MP3， WMA， AVI， MPEG， WMV，還能播放 RM， RMVB 格式的視頻文件。支持音量調(diào)節(jié)，快進(jìn)、快退的播放控制。支持播放菜單功能，可以添加單個(gè)或者多個(gè)多媒體文件，任意選擇節(jié)目進(jìn)行播放。還可支持多種播放模式，如順序播放，單曲循環(huán)，全部循環(huán)，隨機(jī)播放等。還能支持中、英、日三種語(yǔ)言界面，完全能滿(mǎn)足普通用戶(hù)的要求。 但是播放器軟件也存在許多缺陷，一是界面不美觀(guān)，需 要改善，二是對(duì) CPU 資源占用少的優(yōu)勢(shì)沒(méi)有體現(xiàn)出來(lái)，還需要進(jìn)行改良。 參考文獻(xiàn) [1] 微軟公司 [美 ].用 C.NET開(kāi)發(fā) Windows應(yīng)用程序 [M].鄭宇紅 ,徐泓 [譯 ].北京：清華大學(xué)出版社 ,2020。 [2] 鄭宇軍 .C [M].北京：清華大學(xué)出版社 ,2020。 [3] Tom Archer[美 ].C技術(shù)內(nèi)幕 [M].侯曉霞 ,柴洪輝 [譯 ].北京：清華大學(xué)出版社 ,2020。 [4] 吳財(cái)軍 .C經(jīng)典范例 50講 [M].北京：北京希望電子出版社 ,2020。 [5] [美 ].C 大學(xué)教程 [M].湯涌濤 ,李強(qiáng) ,葛昊晗 [譯 ].北京： 電子工業(yè)出版社 ,2020。 [6] 羅斌 .Visual C .NET[M].北京：中國(guó)水利水電出版社 ,2020。 [7] 郝春強(qiáng) .C基礎(chǔ)與實(shí)例教程 [M].北京 ： 中國(guó)電力出版社 ,2020。 第 24 頁(yè) 共 25 頁(yè) 致 謝 本文是在陳運(yùn)老師的熱情關(guān)心和指導(dǎo)下完成的，她淵博的知識(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。在此向她表示我最衷心的感謝！ 在論文完成過(guò)程 中，本人還得到了其他老師和許多同學(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(zhuān)家、老師表示衷心的感謝！ 作者簡(jiǎn)介 姓 名：羅云 性別： 男 出生年月： 1984 年 2月 20 日 民族：漢族 Email: 第 25 頁(yè) 共 25 頁(yè) 聲 明 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(mén)遞交學(xué)位論文的原件與復(fù)印件。 （ 2）學(xué)?？梢圆捎糜坝　⒖s印或其他復(fù)制方式保存學(xué)位論文。 （ 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。 （ 4）學(xué)?？稍试S學(xué)位論文被查閱或借閱。 （ 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）。 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。 特此聲明！ 作者簽名： 2020 年 06 月 08 日 第 26 頁(yè) 共 25 頁(yè) observing time of the whole fucking trip, Gaby muttered. In the seat next to Cirocco, Bill laughed. Five minutes, Gaby, he said. And I really think we ought to let them burn as long as we planned. It would work out so much nicer that way. The engines shut down on the tick and they watched for final confirmation that they were where they wanted to be. This is Ringmaster。 C. bones manding. We have arrived in Saturn orbit at hours, U niversal Time. I39。ll send up the prelims for a correcting burn when we e out from behind. Meanwhile, I39。m going off this channel. She slapped the appropriate switch. Anybody who wants to take a look outside, this is going to be your only chance. It was tight, but August and April and Gene and Calvin man aged to squeeze into the cramped room. After checking with Gaby, Cirocco turned the ship niy degrees. Saturn was a dark gray hole, seventeen degrees wide, covering 1000 times the area of the moon as seen from Earth. The rings were an incredible forty degrees from side to side. They looked like solid, brilliant metal. Ringmaster had e in north of the equator, so the upper fa ce was presented to them. Each particle was being lit from the opposite side, presenting a thin crescent, like Saturn. The sun was a brilliant point of light in the ten o39。clock position, approaching Saturn. No one spoke as the sun drew nearer to eclipse. They saw Saturn39。s shadow fall across the part of the ring nearest them, cutting it like a razor. Sunset lasted fifteen seconds. The colors were deep and changed rapidly, pure reds and yellows and blue blacks like those seen from an airliner in the stratosphere. There was a soft chorus of sighs in the cabin. The glass depolarized and everyone gasped again as the rings grew brighter, br acketing the deep blue glow that outlined the northern hemi sphere. Gray striations became visible on the plaary surface, illuminated by ringlight. Down there were storms as big as the Earth. When she looked away at last, Cirocco saw the screen to her left. Gaby was still in SCIMOD. There was an image of Saturn on the screen above her head, but she didn39。t look up at it. Gaby, don39。t you want to e up and see this? Cirocco saw her shake her head. She scanned the numbers marching across a tiny screen. And lose the best observing time of the whole trip? You39。ve got to he out of your mind. They first assumed a long, elliptical orbit with a low point 200 kilometers above the theoretical radius of Themis. It was a mathematical abstraction beca use the orbit was tilted thir ty degrees from Themis, equator, which put them above the dark side. They passed the spinning toroid to emerge on the sun side. Themis lay spread out before them as a nakedeye object. Not that there was a lot to see. Themis was nearly as black as space, even with the sun shining on it. She studied the huge m ass of the wheel with the triangular solar absorption sails rimming it like sharp gear teeth, presumably soaking up sunlight and turning it into heat. The ship moved over the interior of the great wheel. The spokes became visible, and the solar reflectors. They seemed nearly as dark as the rest of Themis, except w here they mirrored some of the brighter stars. The problem that still worried Cirocco was the lack of an entrance. There was a lot of pressure from Earth to get into the thing, and Cirocco, despite her cautious instincts, wanted to as badly as anyone else. There had to be a way. No one doubted Themis was an artifaI think The docking facilities! Cirocco yelled. They39。re gonna grab us! Bill, start the engine sequence, stop the carousel, get rea dy to move. But it39。ll take us thirty minutes I know. Move! She caromed off the viewport and into her seat, reached for her microphone. All hands.