面向对象程序设计Chapter 01.ppt

C++程序设计Programming in C++Nell DaleChip Weems Communication InformationTeacher： Yue e lüqddz2001@126.com Main Contents of The Course Theory about Computer Programming Basic Programming skill in C++ Object-Oriented Programming in C++ (Class and Object, etc.)(面向对象程序设计) Requirement of Learning Learn the grammar of C++ language; Improve practical programming skills by doing exercises and experiments; Preparation for reading original technical or research materials; Think about the author’s ideas, and consider programming from different views. Chapter 1Overview of Programming and Problem Solving Chapter 1 Topics To understand what a computer program is. To understand what an Algorithm is. To learn what a high-level programing language is. To understand the Compilation and Execution processes To learn what the major components of a computer are and how they work together 1.1.1 Basic Concepts Computer A programmable device that can store, retrieve and process data. Computer Program A sequence of instructions to be performed by a computer. 1、 Problem-Solving Phase（解决问题阶段） ANALYZE the problem and SPECIFY what the solution must do(分析问题并找出解决方案） ALGORITHM develop a logical sequence of steps that solves the problem(给出解决问题的逻辑步骤) VERIFY that your solution really solves the problem（验证方案的正确性） TESTING your program means running (executing) your program on the computer, to see if it produces correct results.if it does not, then you must find out what is wrong with your program or algorithm and fix it--this is called debugging(调试) 3、Maintenance Phase（维护阶段） USE use the program. Maintain MODIFY the program to meet changing requirements or correct errors that show up in using it 1.2 What is a programming language? It is a language with: strict grammar rules, symbols, and special words used to construct a computer program. 1.2.1 Machine Language The language, made up of binary-c