【正文】 ()。 (1, Name)。 ID)。 (null, 修改記 錄 成 功 , 系統(tǒng)提 示 , )。 ()。 } ⑤查詢：對(duì)于用戶管理而言，可以按賬號(hào)查詢，也可以按用戶名查詢，點(diǎn)擊“查詢” 按鈕后，會(huì)得到相應(yīng)的提示，實(shí)現(xiàn)如下： String ID = ()。 if (() amp。 ()) { (null, 請(qǐng)輸入 查 詢條 件 , 系統(tǒng)提 示 , )。 PreparedStatement stmt = con .prepareStatement(select * from Client where ID = ? } else {// 如果用 戶 記錄存在 ， 則跳轉(zhuǎn)到 用 戶查詢結(jié) 果 框架 new ClientQueryResult(ID, Name)。 } } 其他的幾個(gè)基本管理項(xiàng)和營(yíng)業(yè)查詢跟用戶管理類似，不再講解。 try { Connection con = ()。 (2, ID)。 ( null 賬 號(hào) +ID+充值成 功 ，可用余 額 為： +newBalance 充值成 功 ) }catch(Exception e){ () } } 第 29 頁(yè) 共 35 頁(yè) 第五章 系統(tǒng)測(cè)試 功能測(cè)試 功能測(cè)試需要參照上面的詳細(xì)功能需求分析來設(shè)計(jì)測(cè)試用例，每個(gè)功能都要測(cè)試到， 功能測(cè)試是系統(tǒng)最基本的測(cè)試。 CaseID OldPassword NewPassword ConfirmPassword Expected 7 654321 654321 654321 提示 “ 輸入的 舊 密碼錯(cuò) 誤 ” 8 123456 / / 提示 “ 新密碼 不 能為空 ” 9 123456 654321 123456 提示 “ 兩次輸 入 的新密碼不 同 ” 10 123456 654321 654321 提示 “ 修改密 碼 成功 ” 表 2 修改密碼的功能測(cè)試用例 （ 3）結(jié)賬下機(jī)的功能測(cè)試用例，如表 3。 CaseID CurrentBalance Expected 13 提示 “ 余額不 足 ，請(qǐng)速到前 臺(tái) 充值，以免影 響使 用 ” 14 0 自動(dòng)結(jié) 賬 下機(jī)，不顯 示 本次上機(jī)信息 表 4 余額不足提醒的功能測(cè)試用例 第 30 頁(yè) 共 35 頁(yè) 性能測(cè)試 （ 1） 易用性和界 （ 2） 面測(cè)試 本系 統(tǒng)采用表格形式顯示數(shù)據(jù)，利用鼠標(biāo)右鍵菜單來實(shí)現(xiàn)功能，操作簡(jiǎn)單，但是整體風(fēng)格不夠美觀，互動(dòng)性不夠強(qiáng)。 （ 3）可靠性測(cè)試 在管理員使用界面中對(duì)數(shù)據(jù)進(jìn)行增刪改操作，對(duì)應(yīng)的數(shù)據(jù)庫(kù)中數(shù)據(jù)也實(shí)時(shí)更新。設(shè)計(jì)工作完成后，主要精力集中于系統(tǒng)的實(shí)現(xiàn)上。值得一提的是，系統(tǒng)的所有功能幾乎都是依賴于 Swing 的監(jiān)聽器來完成的，而 JTable 組件對(duì)數(shù)據(jù)的顯示和處理也起到了重要作用，個(gè)性化的布局管理器在界面的布局上也幫助非常大。 雖然通過系統(tǒng)的軟件測(cè)試方法的檢測(cè)，但是該 網(wǎng)吧計(jì)費(fèi) 系統(tǒng)還存在著一些潛在的缺陷： 該系統(tǒng)在設(shè)計(jì)實(shí)現(xiàn)時(shí)對(duì)用戶的信息存儲(chǔ)量沒有很好的估計(jì)，所以在以后的實(shí)際使用中，可能會(huì)出現(xiàn)一些數(shù)據(jù)庫(kù)容量的限制問題。 第 32 頁(yè) 共 35 頁(yè) 致 謝 歷時(shí) 將近兩個(gè)月的時(shí)間終于將這篇論文寫完 ,在論文的寫作過程中遇到了無數(shù)的困難和障礙 ,都在同學(xué)和老師的幫助下度過了。 感謝這篇論文所涉及到的各位學(xué)者 .本文引用了數(shù)位學(xué)者的研究文獻(xiàn) ,如果沒有各位學(xué)者的研究成果的幫助和啟發(fā) ,我將很難完成本篇論文的寫作。感謝學(xué)院的各個(gè)領(lǐng)導(dǎo)、老師給我們提供了知識(shí)和幫助，讓我們能從容的完成畢業(yè)設(shè)計(jì)和論文。 感謝學(xué)院的同學(xué)們，他們?cè)谖移綍r(shí)的學(xué)習(xí)和生活中給了我很大的幫助，尤其是寢室的同學(xué)們，他們?cè)谖业恼撐耐瓿蛇^程中給我提供了許多寶貴的信息、意見和幫助！使得我們的畢業(yè)設(shè)計(jì)更加完備。三年仿佛在一瞬間就過去了，大一入校時(shí)的情境還歷歷在目，那時(shí)的我們剛踏入大學(xué)，帶著一份好奇和忐忑。我相信“不積跬步無以至千里，不積小流無以成江?！?，只要我們努力的用知識(shí)充實(shí)自己和武裝自己，在我們即將踏入的人生大學(xué)中，我們必定會(huì)帶 著信心和微笑去面對(duì)，相信成功必定屬于我們。s Shaanxi province pass through a stop on the ancient Silk Road, Gansu39。80s. We sat on the back of pickup trucks for hours. The sky was blue, and we couldn39。t have a formal stage. The audience just sat on the grass. Usually, the performances became a big party with local people joining in. For him, the rewarding part about touring isn39。s performers of the troupe still tour the region39。s Poly Theater. Their show, titled Ulan Muqir on the Grassland, depicted the history and development of the art troupe. Being from the region allowed me to embrace the culture of Inner Mongolia and being a member of the troupe showed me where I belonged, Nasun, the art troupe39。s Liaoning province, decades ago. The solider gave the old man a handmade saddle when they bid farewell. The story inspired Nasun to write Carved Saddle, a song that later became one of his most popular numbers. Now, every year, Nasun recruits young singers and dancers for the troupe. The troupe has also designed a new repertoire, which is mostly based on the daily lives of Mongolian people, especially the lives of nomadic families, and has bined contemporary musical elements with folk songs of the region. Haimu, a 25yearold khoomei (a local variant of overtone singing) singer, joined the troupe three years ago. Along with a sixmember band, he performs fast songs and soft ones that he writes－ all while playing the horsehead fiddle.Although I learned the piano since childhood and grew up listening to various kinds of music, to me, the folk music of Inner Mongolia is the root, he says. Performing in remote villages is pleasant. I feel at home on the boundless grasslands, and the warm people there make me feel fulfilled. The first round of spring auction season in Beijing ended last week, but it failed to create much spring in the art market. Although two pieces of Chinese painting fetched more than 100 million yuan, the decline in trading volume and sa le rate showed a downturn this year. In the ―Grand View: Chinese Painting Highlight‖ session at China Guardian 2022 spring auctions, Pan Tianshou’s representative work Eagle, Rock and Flora hit a record auction price of 279 million yuan, while Li Keran’s masterwork Jinggang Mountain fetched million yuan, an unexpected high in recent years. However, the trading volume fells to billion yuan from billion yuan in the same period the year before. The Huangchen 2022 Spring Auctions, which recorded million yuan in total sales, experienced the same. The section number went down to 5 from 12 pared to last year. According to expert Shao Jianwu, the art market did not attract much excitement this year due to the booming stock market and the persistent problems of fery and fake deals. The two pieces of Chinese painting notched up high price this spring due to their own value not due to a revival in the market. The successful transaction of two works with a hammer price of more than 100 million yuan once again confirms that valuable and rare works of high quality always earn the longlasting high price. Chinese painting and calligraphy is still the pillar of the market. However, the overall sales rate has dropped slightly, which reflects the demand for the ordinary auction goods has weakened,‖ said the president of China Guardian’s Hu Yanyan. Besides, the entry of new buyers also makes certain changes to the direction of purchasing. In a word, the overall market trend is very unpredictable. Although China Guardian 2022 Spring Auctions has achieved remarkable results, it does not mean that the market has walked out of the predicament. We still have to wait for the big economic boom to invigorate the art market.‖ Even so, the hot pursuit of some special items appeared this spring. A special session of China Guardian Spring Auctions titled ―Fine Gilt—Bronze Buddhist Images‖ achieved a great deal with total sales volume of million yuan a