c语言概述1（C language 1）.docVIP

c语言概述1（C language 1） This article is contributed by Deng Jiequan Ppt documents may experience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view. C programming language Guangdong Industry Technical College Chapter 1 C Language Overview C language development history, C language features, C program format and structural features, C procedures on the computer steps 1.1 C language development Programming language development Programming machine, compiler, level language processor, CPU CPU, CPU elevation plus Language words von Neumann structure: 0 host: controller 1 preface of the language of memory computer programmingDD A, B send I/O device: keyboard, display Home page C language teaching slide version 5254565860626466, 6870727476788082, 84868890929496, Ada, Modula-2, Pascal, ALGOL60, ALGOL68,, CPL, BCPL, B C Smalltalk 80, C++, Java Simula 67, BASIC, FORTRAN, PL/1, COBOL, LISP, PROLOG, ANSI-BASIC, QBASIC,, VB, FORTRAN90, FORTRAN77 Produce a background; produce a process - - - - - - - C language development process Time: 1972~1973 location: the Baer laboratory Objective: to design a UNIX operating system: Ken.Thompson and Dennis.M.Ritchie: Ken.Thompson Dennis.M.Ritchie C: KR The C standard Programming Language ANSI ANSI C: 1987 1990 C: 1983 87 international standard ANSI C C standard 1.2, C language features Intermediate language - language is concise, compact, flexible operator and data type rich - program design, structured, modular generate target code, high quality - good portability 32 key words: (defined by the system, not for other definitions) defined by the system, not for other definitions of auto case const continue) break default do enum extern float if int long return short signed sizeof struct switch typedef unsigned volatile while Char, double, for, register, static, union, void, else, goto 9 control statements If (), ~else~, for () ~ while () ~ do~