《C语言课程设计案例精编》课件 1.pptVIP

* * * * 本课程是编程语言，最终目的是用这种语言编制程序来和计算机交流，所以这里首先介绍什么是程序，什么是程序语言。计算机程序就是一系列计算机指令的集合。每个指令会指挥计算机执行不同的操作。编制程序的工作就是为计算机安排指令序列。编程语言就是用来书写这些指令的语言。软件，程序，编程语言的关系。 * 本课程是编程语言，最终目的是用这种语言编制程序来和计算机交流，所以这里首先介绍什么是程序，什么是程序语言。计算机程序就是一系列计算机指令的集合。每个指令会指挥计算机执行不同的操作。编制程序的工作就是为计算机安排指令序列。编程语言就是用来书写这些指令的语言。软件，程序，编程语言的关系。 * * * 本课程是编程语言，最终目的是用这种语言编制程序来和计算机交流，所以这里首先介绍什么是程序，什么是程序语言。计算机程序就是一系列计算机指令的集合。每个指令会指挥计算机执行不同的操作。编制程序的工作就是为计算机安排指令序列。编程语言就是用来书写这些指令的语言。软件，程序，编程语言的关系。 Chapter 1 ： Basis of Program Design Instructor :Xiang Xie Outline 1.1 Programs and Programming Language 1.2 Program Design and Algorithms Computer system Hardware Software Programs Computer system Hardware Software programs data documents Program (A series of computer commands) Program = Data Structure + Algorithm programming language A set of rules and symbols to communicate with Computer A set of programs Program Design Programs #include stdio.h void main() { printf(“what are you doing?\n”); } Programs Programming language Software Programs Language rules Computer system Hardware Software programs data documents Program (A series of computer commands) Program = Data Structure + Algorithm programming language Programs Programs Program a list of instructions for the computer to follow to accomplish the task of processing data into information Programming simply means telling a computer what to do Instructions（指令） made up of statements（语句） used in a programming language Computer system Hardware Software program data document programming language Programs Programming Language Natural Language Used to communicate between people Programming Language Used to communicate between people and computer Grammar Meaning Syntax (语法) semantics (语义) Programming Language The syntax (语法) of a programming language is concerned with the form of programs The semantics (语义) of a programming language is concerned with the meaning of programs Chinese, English, Germany, …… Fortran, B, Pascal, C