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【正文】 an object of the type Banana. 在面向?qū)ο缶幊?，一類是一個用于創(chuàng)建自身的實例的構(gòu)造 稱為類的實例，類的對象，實例對象或簡單對象。一個類定義的成員，使實例的狀態(tài)和行為。數(shù)據(jù)字段成員（成員變量或?qū)嵗兞浚┦诡惖囊粋€實例，以保持狀態(tài)。其他類型的成員，尤其是方法，使一個類的實例的行為。類定義 其實例的類型。 A類通常代表名詞，比如一個人，地方或事物，或一些名詞化。例如， ―香蕉 ‖類代表一般香蕉的性質(zhì)和功能。將一個單一的，特別是香蕉的 ―香蕉 ‖，―香蕉 ‖的類型的對象的一個實例。 面向?qū)ο蟮脑O(shè)計 (Object Oriented Design) The OOD method is a sort of analyzing , designing and thinking methods. 面向?qū)ο蟮姆椒ㄊ且环N分析方法、設(shè)計方法和思維方法。 An object contains encapsulated data and procedures grouped together to represent an entity. The ?object interface‘, how the object can be interacted with, is also defined. An objectoriented program is described by the interaction of these objects. Objectoriented design is the discipline of defining the objects and their interactions to solve a problem that was identified and documented during objectoriented analysis. 一個對象包含封裝的數(shù)據(jù)和程序組合在一起，代表一個實體。對象接口，如何可互動的對象也被定義。一個面向?qū)ο蟮某绦蛎枋鲞@些對象互動。面向?qū)ο蟮脑O(shè)計是確定的對象和它們之間的相互作用，解決問題，在面向?qū)ο蟮姆治鲨b定和記錄的紀(jì)律。 29 UML 統(tǒng)一建模語言（ Unified Modeling Language） ―UML is an industry standard modeling language with a rich graphical notation, and prehensive set of diagrams and elements. A prehensive UML modeling tool like Enterprise Architect is the ideal way to take control of your software or business project now!‖ ―UML是一個行業(yè)標(biāo)準(zhǔn)建模語言具有豐富的圖形符號，和一套全面的圖表和元素。一個全面的 UML建模工具，如企業(yè)架構(gòu)師，是理想的方式，現(xiàn)在采取控制您的軟件或業(yè)務(wù)項目！― 繼承 In the Java programming language, each class is allowed to have one direct superclass, and each superclass has the potential for an unlimited number of subclasses: 每個類在 Java編程語言，允許有一個直接父類，每超有潛力無限數(shù)量的一個子類： In objectoriented programming , inheritance is the concept that when a class of object s is defined, any subclass that is defined can inherit the definitions of one or more general classes. 在面向?qū)ο缶幊讨?，繼承的概念是，當(dāng)定義一個對象類，任何已定義的子類可以繼承一個或多個一般的類 。 （ business to business） B2B is the selling of goods and services by one pany to another using the Inter. B2B is an abbreviation for business to business. B2B是一家公司銷售的商品和服務(wù)的另一個使用互聯(lián)網(wǎng)。 B2B是 ―企業(yè)對企業(yè)的縮寫。 ‖ Businesstobusiness, merce transactions between businesses, such as between a manufacturer and a wholesaler, or between a wholesaler and a retailer 企業(yè)對企業(yè)，商業(yè)企業(yè)，如制造商和批發(fā)商之間的交易，或與批發(fā)商和零售商之間的交易。 （ Business to Customer） B2C, in other words BusinesstoConsumer or BusinesstoCustomer is relevant to any industry or business association that markets its goods created to customers using the Inter for personal use. B2C的，換句話說， ―企業(yè)對消費(fèi)者 ‖或 ―企業(yè)對客戶 ‖是任何行業(yè)或企業(yè)協(xié)會，市場創(chuàng)建供個人使用互聯(lián)網(wǎng)的客戶使用其貨物有關(guān)。 Selling individual products to individual buyers, usually on cash payment basis。 retailing. denoting an inter munication channel between a business and consumers 銷售個別產(chǎn)品，個別買家，通常以現(xiàn)匯支付 。零售。指一個企業(yè)與消費(fèi)者之間的網(wǎng)上溝通渠道 33. Network crawler A work crawler is a puter program that visits websites and collects information when you do an Inter search. It can help you maintain a list of files and locations in the work. 網(wǎng)絡(luò)搜索器（網(wǎng)絡(luò)爬蟲）是指當(dāng)你在網(wǎng)上進(jìn)行搜索時，計算機(jī)程序訪問網(wǎng)站和收集信息，它也能幫助你保持一個文件列表和網(wǎng)絡(luò)中的位置。 34. DDS DDS with DSP ( digital signal processing ), is one of the key technology of digital. DDS is the direct digital frequency synthesizer ( Direct Digital Synthesizer ) of English abbreviations. Compared with traditional frequency synthesizer, DDS has the advantages of low cost, low power consumption, high resolution and fast switching time and other advantages, widely used in telemunications and electronic instrument field, is the realization of equipment is a key technology of all digital. DDS同 DSP（數(shù)字信號處理）一樣，是一項關(guān)鍵的數(shù)字化技術(shù)。 DDS是直接數(shù)字式頻率合成器（ Direct Digital Synthesizer）的英文縮寫。與傳統(tǒng)的頻率合成 器相比， DDS具有低成本、低功耗、高分辨率和快速轉(zhuǎn)換時間等優(yōu)點(diǎn)，廣泛使用在電信與電子儀器領(lǐng)域，是實現(xiàn)設(shè)備全數(shù)字化的一個關(guān)鍵技術(shù)。 puting Cloud puting ( Cloud Computing ) is based on the Inter related services increased, use and delivery models, usually involving via the Inter to provide dynamic scalability and often virtualized resources. Cloud is a work, the Inter as a metaphor. The past in the diagram are often used to repres