共查询到20条相似文献，搜索用时 375 毫秒
1.
笔者以为,VFP6无论是从数据库管理功能还是从面向对象程序设计中的自定义类功能,都大大高于VB6,在目前开发中小型MIS及DSS时,仍不失为一个功能强大而又操作十分方便的软件开发工具。自定义类以及通过自定义类来创建用户自己的对象是VFP6的强大功能及主要特点之一,但笔者在开发系统及教 相似文献
2.
利用重用技术来解决日益严重的软件危机已是被普遍接受的事实了。本文利用面向对象的理论和方法,对MIS中的一些通用对象进行了分析,以寻找一条对系统分析阶段知识进行重用的途径。 相似文献
3.
近年来面向对象程序设计方法逐渐成为软件设计的思想主流。在面向对象程序设计中,往往将系统分解成一系列对象和与对象相关联的类。而类和对象的识别是面向对象程序开发中最重要的一部分,不同的分析员可能采用不同的方法。文章通过实例介绍了两种简单易行的在面向对象程序设计中识别类和对象的方法。 相似文献
4.
在MIS系统的设计过程中基于元数据进行系统设计,将系统程序与数据库分离开,可以极大地提高数据库应用程序的灵活性和可扩展性,最大限度降低数据库结构的调整对MIS系统程序的影响。介绍了MIS三层设计模型及实现方式。 相似文献
5.
随着国家信息化建设的普及,MIS系统的应用也越来越广泛.而MIS中,实现数据库中数据的完整性是一个必须解决的复杂问题.笔者在实践中,总结出了服务器端的解决方案和客户端的解决方案两类方法,对MIS系统的开发有一定的借鉴意义. 相似文献
6.
最近,E.R.Puczylowski用公理化方法建立了外延广泛的代数系统--代数对象类的概念,它包含了大多数已知的代数范畴.并且,在特殊的代数对象类--正规代数类中,他给出了半单类的一个特征.本文的目的是在正规代数类中给出半单闭包的构造. 相似文献
7.
在深入剖析国内通用MIS系统开发和应用情况的基础上,提出了一种基于用户的MIS构造模型。 相似文献
8.
本从VB6.0窗体类对象的属性、事件和方法等方面入手，阐述了窗体类对象的重要属性及其特殊应用，并以实例论述了窗体类对象的事件、方法的各种应用技巧，为VB初学和编程人员提供有益的技术支持和帮助。 相似文献
9.
代数对象的根与半单类 总被引：1，自引：0，他引：1
最近,Puczylowski在由公理系统构建的代数对象类中建立了一般根论.本文的目的是用格论的方法给出根和半单类的刻划,探讨sX是半单类的条件. 相似文献
10.
刘伟军 《赣南师范学院学报》2009,30(3):68-71
对象池将被访问的对象保存在内存缓冲区中。在频繁创建和销毁对象时,降低了系统开销。提高了对象访问的性能．分析对象池技术的设计原理和实现策略,在J2EE平台上构造了基于LRU算法的对象池基本框架． 相似文献
11.
We examined the role of object kind familiarity (i.e., knowledge of a count noun for an object) on preschoolers' sensitivity to the relation between a novel word's form class (adjective or count noun) and its reference (to a material kind-property or to an object kind). We used a forced-choice match-to-target task, in which children learned a word for one object (e.g., a metal cup), and then chose between 2 other objects. One was from the same object kind but a different material kind (with different related properties, such as color and texture; e.g., a white plastic cup); the other was from a different object kind but the same material kind (with the same related properties; e.g., a metal spoon). In Experiment 1, children learned either a count noun (e.g., "This is a zav") or an adjective (e.g., "This is a zav one"). Within each form class, we crossed the familiarity of the referent object kind (familiar and unfamiliar) with the age of the children (2- and 4-year-olds). The principal finding was that in interpreting an adjective, 4-year-olds were more likely to choose the object sharing material kind with the target if the target was familiar than if it was unfamiliar. No such familiarity effect was evident among 2-year-olds. In Experiment 2, we employed a more unambiguously adjectival frame (e.g., "This is a very zav-ish one"), and replicated the results of Experiment 1. We interpret the results in terms of 2 proposed word learning biases: one that learners initially expect any word applied to an unfamiliar object to refer to a (basic-level) kind of object, and a second that learners prefer words to contrast in meaning. We consider several interpretations of the observed age difference. 相似文献
12.
In 2 experiments, 3 1/2-year-old children interpreted a novel count noun (e.g., "This is a murvil") applied to an unfamiliar stuffed animal as referring to a basic-level kind, rather than to a kind that individuates its members by type of situation (context or life-phase). For example, children made interpretations akin to PERSON (a basic-level kind) rather than PASSENGER (a context-restricted kind), and DOG (a basic-level kind) rather than PUPPY (a life-phase-restricted kind). These experiments also document the role of object familiarity (previous knowledge of a basic-level count noun for the animal) and explicit information (about the relevance of the animal's situation) in the learning of count nouns for situation-restricted kinds. We note that children readily learn the meanings of basic-level count nouns through ostensive definitions (e.g., "This is an X"), although ostensive definitions do not distinguish basic-level kinds from situation-restricted kinds. Therefore, we suggest that children make an implicit assumption that a count noun applied to an unfamiliar solid object refers to a basic-level kind of object, and not to a kind that individuates its members by type of situation. We illustrate the importance of this assumption by showing how it bears directly on individuation, and therefore, on quantification (e.g., counting). 相似文献
13.
关于自由与道德关系之考察 总被引：1，自引：0，他引：1
自由与道德都是人之属性。人的自由是相对的,这种相对性取决于一种尺度。善是自由的根本尺度,这种尺度不是对象或客体对主体的一种规定,而是作为活动主体的人对外部对象或活动客体实现的一种价值要求,即道德判断。追求自由的过程,就是追求善的过程,道德的完善,就是自由的实现;自由以道德作为最终表征,道德以自由为表现形式;自由是人的一种自主、自决、自律的能力,这种能力的使用必须以对道德必然性的认识与遵循为基础;只有通过道德责任的自觉选择,才能达到理想的自由境界。因此,在自由与道德的关系中,道德是实现自由充分且必要的条件,自由离不开道德的判断,道德以自由的实现状态为依据,道德与自由共生共存,密不可分,道德与自由的这种关系是人的目的状态不同的表述方式。 相似文献
14.
使用“几何画板”制作的数学动画,貌似繁多,难以归类;本文从选择对象及其构建的子对象、选择对象 相似文献
15.
陶能祥 《大学.研究与评价》2007,(11)
价值是人们对于能够满足自己某种需要的客观事物重要性的认识与评价,目标是人们在一定价值观念支配下作出的对一定对象的选择或对某种结果的追求。高等教育分流的价值目标是高等教育分流主体对有关分流活动的价值取向与目标选择,它们之间具有一定的矛盾性,需要高校主体采用"兼顾"的分流目标加以协调。 相似文献
16.
孟伟 《广东教育学院学报》2005,25(6):36-39
抢夺、窃取国有档案罪的客体是复杂客体，在客观方面表现为乘人不备公然夺取国有档案或者秘密窃取国有档案的行为，主体是自然人一般主体，而在主观方面表现为直接故意，并要求具有非法占有的目的。刑法没有规定抢劫国有档案罪并非立法缺陷，对于抢劫国有档案的行为依照抢劫罪处罚即可。 相似文献
17.
震后高校灾区学生的个案管理模式设计——以成都某高校为例 总被引：1，自引：0，他引：1
陈会全 《四川教育学院学报》2009,25(2):4-6
个案管理是社会工作的一种专业社会方法。它强调以团队的方式来共同协助案主解决问题、满足需求。四川5·12地震后,高校学生辅导不足、学生需求面广,个案管理尤显重要。提出了在震后高校运用专业社会工作手法挖掘并建立个案管理模式服务于高校学生服务工作。 相似文献
18.
GILL CHAPMAN 《The International Journal of Art & Design Education》1995,14(1):65-76
In general, Industrial Design BA courses have been slow to formulate a coherent strategy for the inclusion, implementation and integration of computers into their teaching. CAD hardware and software has appeared in many institutions as a result of the enthusiasm of one or two individuals who have used a particular CAD system themselves or been bowled over by an impressive demonstration. The possession of the equipment then to a large extent determines what kind of use can be made of it, and this is also subject to the vagaries of staff time and expertise, both of which are often in short supply. Basic questions, such as ‘What is the purpose of CAD education in this course?’ or ‘What kind of computing do the students really need?’ are often by-passed until it is too late. Over the last three years at Sheffield Hallam University a conscious attempt has been made to evolve an approach which begins with questions such as these and results in a coherent teaching and learning strategy for our students. 相似文献
19.
田文燕 《甘肃广播电视大学学报》2006,16(1):44-46
割裂是英语中一种特殊的表达形式。这种句式种类繁多,形式多样,尤其是在科技英语中较为常见。本文从科技英语中常出现的主谓割裂、后置定语和受定语的割裂、宾语和宾补的割裂、动宾割裂等方面阐述了这一特殊语法现象。熟悉和掌握割裂的规律,有助于正确地阅读理解,是阅读者必须掌握的一项基本技能。 相似文献
20.
Young children's inductions from natural kinds: the role of categories and appearances 总被引：8，自引：1，他引：8
Recent analyses of natural kind terms (e.g., dog, gold) suggest that people expect members of a kind to share unforeseen properties. The present study investigated the development of this expectation by studying children's inductive inferences. On each of a series of problems, 3- and 4-year-old children were taught a new fact about an object and then were asked whether it would generalize to: an object that looked like the original, that had the same label as the original, that looked like the original and had the same label, or that differed from the original in both respects. The results indicate that 3- and 4-year-olds drew more inferences based on category membership than on perceptual appearances, when both were available. Furthermore, children often based their inferences on category membership even when no label was provided. Thus even 3-year-olds assumed that natural kind categories include more than superficial features. 相似文献