計(jì)算機(jī)專業(yè)與信息管理與信息系統(tǒng)等專業(yè)畢業(yè)設(shè)計(jì)外文翻譯-中英文對(duì)照-在線瀏覽
2025-02-03 12:46本頁(yè)面
【正文】 d the teacher ing saying and understand accurately with management everyone noodles information. AbstractIt is a very heavy and baldness job of managing a bulky database by manpower. The disadvantage, such as great capacity of work, low efficiency and long period, exist in data inputting, demanding and modification. So the puter management system will bring us a quite there are so many students in the school, the data of students39。 information. The thesis introduced the background of development, the functions demanded and the process of design. The thesis mainly explained the point of the system design, the thought of design, the difficult technique and the solutions. The student managed the creation of the system to reduce the inconvenience on the manpower consumedly, let the whole student the data management is more science place that this system has most the special features is the backstage database to unify the management to student39。 population are multitudinous in school,and each student39。 these people may bee bogged down and lost without some code to get their hands on. If you’re part of this latter group and are eager to get to the specifics of the language, feel free to jump past this chapter—skipping it at this point will not prevent you from writing programs or learning the language. However, you will want to e back here eventually to fill in your knowledge so you can understand why objects are important and how to design with them. All programming languages provide abstractions. It can be argued that the plexity of the problems you’re able to solve is directly related to the kind and quality of abstraction. By “kind” I mean, “What is it that you are abstracting?” Assembly language is a small abstraction of the underlying machine. Many socalled “imperative” languages that followed (such as FORTRAN, BASIC, and C) were abstractions of assembly language. These languages are big improvements over assembly language, but their primary abstraction still requires you to think in terms of the structure of the puter rather than the structure of the problem you are trying to solve. The programmer must establish the association between the machine model (in the “solution space,” which is the place where you’re implementing that solution, such as a puter) and the model of the problem that is actually being solved (in the 16 Thinking in Java Bruce Eckel The objectoriented approach goes a step further by providing tools for the programmer to represent elements in the problem space. This representation is general enough that the programmer is not constrained to any particular type of problem. We refer to the elements in the problem space and their representations in the solution space as “objects.” (You will also need other objects that don’t have problemspace analogs.) The idea is that the program is allowed to adapt itself to the lingo of the problem by adding new types of objects, so when you read the code describing the solution, you’re reading words that also express the problem. This is a more flexible and powerful language abstraction than what we’ve had Thus, OOP allows you to describe the problem in terms of the problem, rather than in terms of the puter where the solution will run. There’s still a connection back to the puter: Each object looks quite a bit like a lit
公司管理相關(guān)推薦
鄂ICP備17016276號(hào)-1