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Command4_Click() Unload Me End Sub 支出項(xiàng)目的 代碼同上 。 5. 8密碼管理模塊的實(shí)現(xiàn) 界面如下圖: 數(shù)據(jù)庫(kù)的連接方法同上。 界面的設(shè)計(jì)如下: 第一步將所需的控件放到表單的相應(yīng)位置;方法:首先在“表單控件”工具欄先選中所需的控件圖件,然后在表單的恰當(dāng)位置上單擊鼠標(biāo)并拖動(dòng)鼠標(biāo),即可把由所選取的控件生成的對(duì)象添加到表單上 ,如 上 圖: 包括的控件主要有:標(biāo)簽、文本框、命令按鈕、 DATA 等。 第二步,選擇窗體或控件進(jìn)行屬性設(shè)置, 先選取中需要設(shè)置屬性的對(duì)象 ,然后 在屬性窗口里顯示了該控件對(duì)象的所有屬性、事件和方法。 第三步雙擊相應(yīng)的控件,在控件的相應(yīng)過(guò)程中編寫(xiě)程序。 主要 代碼如下: Private Sub Command1_Click() If Trim() = Trim() Then If Trim() = Trim() Then = MsgBox 密碼修改成功! = = = Else MsgBox (新密碼與確認(rèn)密碼不符! ) = = End If Else MsgBox 原密碼錯(cuò)誤! = End If End Sub Private Sub Command2_Click() End Sub 5. 9打印 管理模塊的實(shí)現(xiàn) 以教師基本信息打印為例。 運(yùn)行界面: 實(shí)現(xiàn)過(guò)程: 第一步,創(chuàng)建 DataEnvironment1,并新建一個(gè)連接 Connection1。 第二步,再在 Connection1下建立命令 Command1,設(shè)置其屬性如下: 第三步,建立 DataReport1,設(shè)置如下界面: 連接對(duì)象 連接的表 連接的字段 數(shù)據(jù)來(lái)源 與表中的字段對(duì)應(yīng) 當(dāng)前日期和時(shí)間 第六章 系統(tǒng)使用說(shuō)明 6. 1使用說(shuō)明 運(yùn)行于 Windows 98 以上操作系統(tǒng)。 數(shù)據(jù)庫(kù)的默認(rèn)路徑: \教師考核 .mdb 系統(tǒng)默認(rèn)用戶名、密碼: admin 6. 2運(yùn)行 環(huán)境 運(yùn)行環(huán)境: Windows 98 以上操作系統(tǒng)。 JET 數(shù)據(jù)引擎、 ADO 數(shù)據(jù)引擎。 第七章 設(shè)計(jì)心得 經(jīng)過(guò)二個(gè)多月的設(shè)計(jì)和開(kāi)發(fā),教師考核管理系統(tǒng)基本開(kāi)發(fā)完畢。 在此期間本人閱讀了大家 VB 及管理信息系統(tǒng)的教程,收獲非淺,比如:之前本人對(duì) DATA 及 ADOBC 控件不熟悉,通過(guò)這次畢業(yè)設(shè)計(jì),我能熟練的操作這兩個(gè)控件;再比如說(shuō)在用 COMBO 控件時(shí)不知道如何向其中添加列表項(xiàng),走了許多彎路,查詢了縱多資料,最后終于找到了一種捷徑的方法,解決了我設(shè)計(jì)中的一大難題。 因此,在本次的畢業(yè)設(shè)計(jì)中,為搞清控件的使用 方法、編程的各個(gè)難點(diǎn)、掌握面向?qū)ο蟮木幊趟枷?,本人查過(guò)相關(guān)的教材、查詢過(guò)相關(guān)的網(wǎng)站、請(qǐng)教過(guò)指導(dǎo)教師。在摸索中學(xué)習(xí),在困惑中探索,終于探究了一套較好的學(xué)習(xí)面向?qū)ο蟮某绦蛟O(shè)計(jì)的方法。 但是由于畢業(yè)設(shè)計(jì)時(shí)間較短,所以該系統(tǒng)還有許多不盡如人意的地方,比如聯(lián)機(jī)文檔比較少,用戶界面不夠美觀,出錯(cuò)處理不完善等多方面問(wèn)題。這些都有待進(jìn)一步改善。 參考文獻(xiàn) 1.《數(shù)據(jù)庫(kù)系統(tǒng)原理與應(yīng)用》 閃四清 清華大學(xué)出版社 1999 年 2.《 Visual Basic 程序設(shè)計(jì)》 劉世峰 中央廣播電大出版社 2020 年 3.《 Visual Basic 程序設(shè)計(jì)》 陳 明 中央廣播電大出版社 2020 年 4.《軟件工程》 楊文龍 電子工業(yè)出版社 2020 年 5.《管理信息系統(tǒng)》 薛華成 清華大學(xué)出版社 1996 年 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 w ere 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 face 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 blueblacks 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 because 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 na kedeye 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 mass 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 ready 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. Emergency status. Depressurization alert. E vacuate the carousel. Acceleration stations. Strap in. She slammed the alarm button with her left hand and heard the eerie hooting begin in the room behind her. She glanced to