c语言程序设计课件ppt（英文）c program language 之1 introduction

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1、ChapterOneIntroductionContentsWhatisCprogramlanguage1CharacteristicsofClangugae2HowdoesaCprogramwork3WhataCprogramcando4CProgramSturcture5HowtouseTurboC6Programmingbasics7Sumary8ChapteronedocumentdataprogramComputersoftwareWhatisCprogramLanguageWhatiscomputer-systemWhatissoftwareWhat

2、isprogramWhatislanguageCisageneral-purposeprogramminglanguageProgrammingLanguageisatoolthatcanbeusedtodesignsoftware,whichcansolvethedefiniteproblemChapterone1programmingsimplymeanstellingacomputerwhattodo.3Theinstructions（指令）aremadeupofstatements（语句）usedinaprogramminglanguage,2Aprog

3、ramisalistofinstructionsforthecomputertofollowtoaccomplishthetaskofprocessingdataintoinformationWhatisCprogramLanguageWhat’sprogrammingTerm:InstructionStatementProgramlanguageChapteroneWhatisCprogramLanguageAboutprogramlanguageWhatshouldwelearnSyntax（语法）Arithmetic(算法)Programdesign-th

4、elanguagerules,themeaningofthecharactersProceduretosolveaproblemHowtosolvetheproblemChapteroneWhatisC?WhatisCprogramLanguage1Cisacomputerprogramminglanguagewhichcanbeusedtocreatelistsofinstructionsforacomputertofollow.3Chasbeenaroundforseveraldecadesandhaswonwidespreadacceptancebecau

5、seitgivesprogrammersmaximumcontrolandefficiency.2Cisoneofthousandsofprogramminglanguagescurrentlyinuse.Cisaneasylanguagetolearn.Chapteronemain(){inta,b,sum;a=10;b=20;sum=a+b;printf(“%d“,sum);}Calcultionmain(){inti,s=0;for(i=1;i<=100;i++)s=s+i;printf(“%d”,s);}WhatisCprogramLanguageKey

6、:ThesumoftwovaluesThesumof….valuseChapteroneCharacteristicsofCSmallsizeCismodularLoosetypingStructuredlanguageLowlevelprogrammingreadilyavailableChasaverypowerfulsetofoperatorsCisthebasisforC++andJavaCefficientonmostmachinesExample:main(){inta,b,sum;a=10;b=20;sum=a+b;printf(“%d“,sum)

7、;}ChapteroneCharacteristicsofCChasbecomeawidelyusedprofessionallanguageforvariousreasons:Ithashigh-levelconstruction.Itcanhandlelow-levelactivities.Itproducesefficientprograms.Itcanbecompiledonavarietyofcomputers.HowdoesaCprogramwork?Chapterone………………….ThethirdgenerationThesecondgener

8、ationThefirs