资源描述：
《c#外文文献以及翻译》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、WhereC#FitsInInonesense,C#canbeseenasbeingthesamethingtoprogramminglanguagesas.NETistotheWindowsenvironment.JustasMicrosofthasbeenaddingmoreandmorefeaturestoWindowsandtheWindowsAPIoverthepastdecade,VisualBasicandC++haveundergoneexpansion.AlthoughVisualB
2、asicandC++haveendedupashugelypowerfullanguagesasaresultofthis,bothlanguagesalsosufferfromproblemsduetothelegaciesofhowtheyhaveevolved.InthecaseofVisualBasic6andearlier,themainstrengthofthelanguagewasthefactthatitwassimpletounderstandanddidn’tmakemanypro
3、grammingtaskseasy,largelyhidingthedetailsoftheWindowsAPIandtheCOMcomponentinfrastructurefromthedeveloper.ThedownsidetothiswasthatVisualBasicwasnevertrulyobject-oriented,sothatlargeapplicationsquicklybecomedisorganizedandhardtomaintain.Aswellasthis,becau
4、seVisualBasic’ssyntaxwasinheritedfromearlyversionsofBASIC(which,inturn,wasdesignedtobeintuitivelysimpleforbeginningprogrammerstounderstand,ratherthantowritelargecommercialapplications),itdidn’treallylenditselftowell-structuredorobject-orientedprograms.C
5、++,ontheotherhand,hasitsrootsintheANSIC++languagedefinition.Itisn’tcompletelyANSIcompliantforthesimplereasonthatMicrosoftfirstwroteitsC++compilerbeforetheANSIdefinitionhadbecomeofficial,butitcomesclose.Unfortunately,thishasledtotwoproblems.First,ANSIC++
6、hasitsrootsinadecade-oldstateoftechnology,andthisshowsupinalackofsupportformodernconcepts(suchasUnicodestringsandgeneratingXMLdocumentation),andinsomearchaicsyntaxstructuresdesignedforthecompilersofyesteryear(suchastheseparationofdeclarationfromdefiniti
7、onofmemberfunctions).Second,MicrosofthasbeensimultaneouslytryingtoevolveC++intoalanguagethatisdesignedforhigh-performancetasksonWindows,andinordertoachievethatthey’vebeenforcedtoaddahugenumberofMicrosoft-specifickeywordsaswellasvariouslibrariestothelang
8、uage.TheresultisthatonWindows,thelanguagehasbecomeacompletemess.JustaskC++developershowmanydefinitionsforastringtheycanthinkof:char*,LPTSTR,string,CString(MFCversion),CString(WTLversion),wchar_t*,OLECHAR*,andsoon.Nowenter.NET—aco
