已阅读5页,还剩5页未读, 继续免费阅读
版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
TheViusalC+briefintroductionTheobject-orientedbasicconceptthinkingmodedecidedsolvesthequestionway,thetraditionalsoftwaredevelopmentusesfromthetopthoughtinstructionprogramming,soonthegoaldividesintocertainsubtargets,thesubtargetfurtherdividesagain,canprogramuntilthegoaltherealization.Theobject-orientedtechnologybringstheenormouschangeforthesoftwaredesigndomain,itcarriesontheproceduredevelopmentusingthesoftwareobject,theso-calledobjectiscontainsthedataandtothedatamanipulationcodeentity,orsaidisjoinssomeinthetraditionalconstructionofdatatobecalledthememberfunctiontheprocess,thusentrustswiththeobjectbythemovement.Butintheprogramming,theobjecthaswiththerealworldsomekindofcorrespondingrelations,wearepreciselyusethiskindofrelationstocarryonthedecompositiontothequestion.Lookedfromtheprogramlanguageanglethat,inanobjectthecodeand(or)thedatamaybethisobjectprivate,cannotbytheobjectoutsidepartdirectvisit.Thustheobjectprovidedonekindofhigh-levelprotectiontopreventtheprocedurehasnothingtodowiththepartwrongrevisionorhasusedwronglytheobjectprivatepart.Whenattemptsfromtheobjecttoreceivedirectlywhichprotectsinternaldatacarriesontherevision,byprocedurerejection,onlythentheforeignservicefunctionmaterialwhichprovidesthroughtheobjectcantoitsinternaldatacarryontheessentialprocessing,thushasguaranteedthedataprocessingvalidity.Saysfromthissignificance,iscalledthiskindofcodeandthedatarelation“theseal”.Inotherwords,thesealisprotectstheobjectseal,isabilitywhichhidestheinternaldetail.Entrustswithheavyresponsibilitytheaspectintheemphasissoftwaremodule,object-orientedtechnicalandthestandardindustrialdesignrulehasmoresimilarities.Intheobject-orientedlanguage,thekindisfoundstheobjectthekey,infactthekinddescribedaraceobjectpubliccharacteristicandtheoperation,buttheobjectistheconcreterealizationkind.Forexamplethecompactcarisabasicconcept,ithasthecolor,thegeometrysize,thedynamicperformancecharacteristic.Thenwemaydefineiscalled“car”thekind,hasparametersandsooncolor,geometrysize,dynamiccharacteristic,aswellasdescriptionautomobileunderambientconditionstateofmotionmemberfunction.Aconcretecompactcarisanobject,therelatedparameterhastheconcretevalueinthisobject,andmay(ambientconditionparameter)gainthisvehicleconcretestateofmotionthroughtheinputexplanationvariable.Theobject-orientedtechnologybringsthefollowingprofitforthesoftwaredevelopment:Reusability.Fromtheverybeginningtheobjectproductionisforthereuse,completesobjectinnextproceduredevelopmentbypartorcompletelyreuse.Reliability.Becausetheobject-orientedapplicationprocedurehascontainedthroughtheteststandardpart,thereforemorereliable.Becausethemassivecodesoriginatefromthematurereliablekindofstorehouse,thusdevelopstheproceduretheadditionalcodetoreduceobviouslynewly,thisisanimportantreasonwhichtheprocedurereliabilityenhances.Continuity.Hasobject-orientedcharacteristicC+andtheClanguagehastheverybigcompatibility,theCprogrammermaytransitquiteeasilytotheC+languagedevelopmentwork.Theobject-orientedlanguagehasthefollowingbasiccharacteristic:Accesscontrol.Theobjectmustbeabletocarryontheprotectiontoitsinternalcertainelements,istheyonlycanbytheinternaluse,butnotexteriordisturbance.Inturn,theobjectmustcarryontherelationwithotherexteriorelements,inordertocarriesontheoperationtotheobject.InC+,thekindhasprivate(private),protection(protected)andthepublic(public)threekindofvisitmechanisms.Succession.Throughtohadtheobjecttocarryonthemethodwhichtheincreaseorthepartrevisetoestablishthenewobject,tohadtheobjecttobepossibletoincreasethedataandtheprocess,alsomaycarryontocertainprocessesanewdefines.Theinitialkindiscalledthebaseclass,expandsthekindfromthebaseclasstobecalledderivedclass.Fromhadthekindofderivationnewthingsesclassisinordertoobtainstronglypointed.Polymorphism.Thedirectpositiveecosystemissame,theinheritanceconstitutedakindofrace.Intheusualthesekindofraceskindhasthememberfunctionofthesamename,forexampletheODdistributionclassrace,hasangeneralbaseclass,twoderivedclass:ThegrowthfactorODdistributionclassandthegravitationalmodelODdistributionclass,thesekindsallhavetheExecmemberfunctionofthesamename.Thepolymorphismmeantexistencemanykindsofforms,canmakethepeopletoactivateintheprocedureanybelongtoODthedistributionclassraceskindofExecmemberfunction,eveninthetranslationmaynotneedtoknowspecificallytheobjectisbelongstogrowthfactorODthekindofgravitationalmodelODdistributionclass.Theobject-orientedarchitecturetechnologyishelpfultothefoundationprofessionalsoftwaredevelopmentorganization.Forexampletransportationplanalthoughhasthedifference,butvariouscitiesneedthesoftwarebasicallyissame,thisprovidedonekindofmanufactureforthesoftwaredevelopmentorganization(topa
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 七年级《向美而行从心出发》主题班会设计
- 2024-2030年高压直流换流站行业市场现状供需分析及市场深度研究发展前景及规划投资研究报告
- 2024-2030年能源项目可行性研究报告
- 2024-2030年美食广场行业市场发展分析及投资发展前景研究报告
- 2023年PPS企业战略商业风险
- 2024-2030年电影项目可行性研究报告
- 2023年特种设备检验检测企业战略商业风险
- 做一件让世界变得更美丽的事+-绘本《花婆婆》教学设计 高中下学期听障学生主题班会
- 2024-2030年工业滚筒干燥机行业市场现状供需分析及市场深度研究发展前景及规划投资研究报告
- 2024-2030年国内家具玻璃行业市场发展分析及投资发展前景研究报告
- GB/T 29163-2012煤矸石利用技术导则
- GB/T 2496-1996弹性环联轴器
- GB/T 19249-2003反渗透水处理设备
- 房地产市场报告 -CBRE+2023年香港房地产市场展望
- GA/T 1293-2016应用软件接口标准编写技术要素
- 妇产科急诊患者院前急救
- 六年级《劳技》包饺子课件
- 《海燕》省优质课一等奖课件
- 小学科学教育科学四年级下册食物 食物中的营养
- 巨量引擎初级营销师认证真题模拟03(含答案)
- 高三综合评价自荐信范文
评论
0/150
提交评论