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1、TheDefinitiveCS106StyleGuideTableofContents:WhyShouldICareaboutStyle?GoodNamingCommentingDecompositionWhitespaceInstancevs.LocalVariablesElegantCodeStructureAlwaysUseConstants:GeneralandReusableMethods:ThereAreManyWaysToSolvetheSameProblem:ShortMethods:WhyShouldICare
2、aboutStyle?It'scommonwhenyou'rewritingcodetothinkit'sself-explanatory.However,foranyone(yourselfincluded)who'sseeingcodeeitherforthefirsttimeorforthefirsttimeinafewdays,thewaythecodeworksisn'talwaysimmediatelyobvious.Thereasongoodstyleisimportantisbecausewell-structu
3、red,easy-to-readcodeiseasiertomodify,easiertodebugandeasiertoworkwith.Thisissomethingthatwillsaveyouhoursofwork.Whenindoubtastowhetheryoushoulddosomethingforstylereasons("shouldIcommentthisline?"),justrememberthespiritofcodestyle:theobjectistomakeyourcodeasreadableas
4、possible.Herearesometipstomakeyourprogrammingstylebetterandthelifeofanyonereadingitmucheasier!GoodNamingUsemeaningfulnames,butdon'tgooverboard.Supposeyouhaveavariableinyourprogramthatholdsthenumberofhoursemployeesworkedinaweek:/*OK,butnotverydescriptive*/inthours=40;
5、/*muchmoredescriptive,butcumbersome*/inthoursTheWorkersWorkedInOneWeek=40;/*agoodcompromise*/inthoursPerWeek=40;Commonabbreviationsareoftenacceptableinvariablenames,likehrsPerWeek.Butdon'tgetcarriedaway;hrsPWksimplyisnotagoodname.Partofgoodstyleisgoodnaming.Youwantyo
6、urmethodnametosuccinctlydescribewhatitdoes.NevercallamethoddoStuff,giveitagoodspecificnamelikeisOdd.Beconsistentinhowyounameyourmethods.Inoursolutions,wewilluselowercamelcasenamingconventions.CommentingMakesuretocommenteverymethodyouwrite,anddescribewhatthemethoddoes
7、,andwhattheassumptionsarebeforeandafteritiscalled.Writeyourcommentssothatyourprogramcouldeasilybeunderstoodbyanotherperson.Ingeneral,remembertohaveonecommentdescribingtheentireprogram,thenafewlinesabovethefunctionheaderforeachfunctiondescribingthepurposeofthefunction
8、,plusanypre-conditionsorassumptionsofthefunctionandmaybesomelineselaboratingupontheparametersifnecessary.It'salsogoodtocommentwheny
