An abstract data type is just a contiguous chunk of data associated with an address point to it , cast it about , pick it apart , and move on swiftly 抽象数据类型只是与地址相关联的连续数据块指向它,对它进行强制转换,对它进行解析,然后快速向前推进。
The theory of abstract data types will provide the key to this problem , by allowing programs to access data by external properties rather than physical implementation 抽象数据类型的理论将会提供这个问题的答案,既允许程序用外部特性而非物理实现来存取数据
With an abstract data type we cleanly separate the programming tasks of implementation and usage : we are well on our way to decompose a large system into smaller modules 通过抽象数据类型我们干净地把实现和使用两种编程任务分开:我们在把一个大系统分成小模块的道路上顺利前行。
Technically , oop is just about abstract data typing , inheritance , and polymorphism , but other issues can be at least as important . this section will cover these issues 从技术上来说,面向对象仅仅是指抽象数据类型、继承和多态,但是还有一些问题也行挺重要的,这一节将对这些问题进行讨论。
By analyzing the current methods of programming , including formal methods and informal methods , we found a suitable approach which can help us to realize abstract data in apla correctly . 2 对目前的程序设计方法(包括形式化方法和非形式化方法)进行分析研究,寻找一种合适的方法帮助我们正确地实现apla语言中的抽象数据类型; 2
Type system is an efficient approach for data modeling , where a database is viewed as a collection of object classes ; these classes and their behavior are captured by adts ; objects may or may not have aspects of spatio - ternporal data types 类型系统是一种有效的数据建模方法,它将数据库看作对象的集合,每一类对象及其行为用一种抽象数据类型( adt )来描述,对象可以具有时空数据类型的属性。
Finally , we set up the object oriented data modeling ( oodm ) of the data processing based on c + + object oriented technology ( oot ) and we implemented the unitary architecture designing , its function module partition based on the software framework theory and its program design and development 最后,通过使用软件体系结构理论中的基于抽象数据类型的面向对象体系结构设计和基于事件隐式调用的结构设计两种设计方法结合起来,进行各功能模块的划分、整体框架的设计,以及具体的的软件设计和开发工作。
I selected the user datagram protocol as transport protocol , and formulated application protocol , so that the server can receive the orders from the client and do anything ordered by the client . data is transported by " stream " that is object - oriented abstract data between the client and the server in the lan , and i also use tumudp to transmit and receive " stream " . many api functions are used in my paper in order to control the keyboard and the mouse of the remote computer , and also control its system ability ( such as turn off or reset it ) 位于同一局域网内的服务器和客户机之间采用用户数据报协议( udp )作为运输层通信协议,论文作者还制定了功能编码,使得服务器能够解释客户机通过网络发送的命令,并根据命令进行操作;论文以建立在面向对象基础上的抽象数据类型“流”作为传送数据的载体,通过delphi提供的nmudp控件进行“流”的发送和接收以实现服务器和客户机之间的交互。
The computer data structure of branch circuit element type and its linear list is defined ; the problem describing a complicated circuits whth data structure is solved . kirchhoff branch element type , kirchhoff colosed loop circuit element type and the set of kirchhoff closed loop circuits are defined ; the computer algorithm for getting a set of kirchhoff closed circuits is given out . and so , using computer for automaticly analysing and solving complicated linear circuit problem can be realized 针对一般的线性电路,用数据结构中关于定义抽象数据类型的方法定义了电路支路数据元素类型及相应的线性表,解决了用数据结构描述任一复杂电路的问题.定义了基尔霍夫支路数据元素类型、基尔霍夫回路元素类型和基尔霍夫回路集,给出了求基尔霍夫回路集的算法.从而实现了计算机自动分析、求解复杂线性电路的问题
Chaper i the research status of relative technologies of the patrol system is firstly introduced , then the problems and shortcomings existed in the patrol system of log are analysed , finally the research contents are expended , with which followed a brief introduction to the dissertation ' s architecture . chapter ii based on the analysis of available patrol data models , the primary object - oriented thoughts and modeling techniques are used to build the patrol data model . a conceptual model in patrolling loc is constructed 第二章,在对已有巡检数据模型分析的基础上,运用面向对象基本思想和建模技术,提出了面向对象的巡检数据模型,建立了巡检概念模型,定义了抽象数据类型,对巡检基本对象、关联对象用类的方式进行了描述,并用巡检类图表示类之间的关系,分析了面向对象巡检数据模型的特点。