2016面向?qū)ο蟪绦蛟O(shè)計B卷

PAGE15頁2014版試卷標(biāo)準(zhǔn)格式重慶大學(xué)《面向?qū)ο蟪绦?016—2017學(xué)年第1學(xué)期開課學(xué)院：計算機(jī)課程號：CST21101 考試日期：2017.1.4考試方式：題號一二三四五六七考試方式：題號一二三四五六七八九十總分得分弊作絕拒考試提示嚴(yán)禁隨身攜帶通訊工具等電子設(shè)備參加考試；考試提示嚴(yán)禁隨身攜帶通訊工具等電子設(shè)備參加考試；替他人考試、兩次及以上作弊等，屬嚴(yán)重作弊，開除學(xué)籍。、信守實誠、爭競平室公教試 SECTION1:ShortAnswerQuestions(40points,8pointseach)考

Whatispurevirtualfunction?Whatiscopyconstructor?

命題人：曾令秋、劉驥、楊廣超組題人：葛亮審題人：鄒東升命題時間：2016.12.20教務(wù)名 1. Pleasedescribetheroleofthe“class”. 5. Whatisfunctionobject？ 處姓 制號學(xué)級 線年班、業(yè)專院學(xué) 2. DescribethekeycomponentsofSTL. SECTION2:AnalyzingandUnderstandingProgram(40points,10pointseach)PAGEPAGE55頁2014版試卷標(biāo)準(zhǔn)格式Pleasewritetheoutputresultofthefollowingprogram.#include<iostream>#include#include<numeric>usingnamespacestd;intmyFunction(intx,inty)returnx+2*y;}classMyObject{public:intoperator()(intx,inty){returnx+3*y;}}; 2.Pmain(){intinit=100;intnumbers[]={10,20,30};cout<<"usingdefaultaccumulate:";cout<<accumulate(numbers,numbers+3,init);cout<<'\n';cout<<"usingfunctional'sminus:";cout<<accumulate(numbers,numbers+3,init,minus<int>());cout<<'\n';cout<<"usingcustomfunction:";cout<<accumulate(numbers,numbers+3,init,myFunction);cout<<'\n';cout<<"usingcustomobject:";MyObjectobj;cout<<accumulate(numbers,numbers+3,init,obj);cout<<'\n';return0;

#include<iostream>usingnamespacestd;classSample{private:intpublic:Sample(){x=y=0;}Sample(inti,intj){x=i;y=j;}voidcopy(Sample&s);voidsetxy(inti,intj){x=i;y=j;}voidprint(){cout<<"x="<<x<<",y="<<y<<endl;}}};voidSample::copy(Sample&s){x=s.x;y=s.y;}

classA{voidfunc(Samples1,Sample&s2){s1.setxy(10,20);s2.setxy(30,40);}intmain(){Samplep(1,2),q;q.copy(p);func(p,q);p.print();q.print();return0;}

private:intpublic:A(intx):a(x){cout<<"AConstructor"<<endl;}voidShow()const{cout<<"A::a="<<a<<endl;}};classB:publicA{private:intpublic:B(intx,inty):A(x),b(y){cout<<"BConstructor"<<endl;}voidShow()const{cout<<"B::b="<<b<<endl;}};classC:publicA{private:intpublic:C(intx,inty):A(x),c(y){cout<<"CConstructor"<<endl;}voidShow()const{cout<<"C::c="<<c<<endl;}};intmain(){Pleasewritetheoutputresultofthefollowingprogram.

Bb(1,6);Cc(2,8);A*p=&c;p->Show();return0;Pleasefindouttheerrorsinthefollowingprogramandcorrectthem.#include<iostream>usingnamespace

#include<iostream>usingnamespaceclassA{public:A();A(A);A&operator=(constA&r);intoperator[](intindex);friendconstAoperator+(A&r1,A& r2);friendostream&operator<<(ostream&,constA&);private:intarr[10];};

intA::operator[](intindex){returnarr[index];}ostream&operator<<(ostream&output,constA&r){for(inti=0;i<10;i++)output<<r.arr[i]<<"";returnoutput;}intmain(){A::A()Aa1,a2,a3;{a3=a1+a2;for(inti=0;i<10;i++)a3[3]=7;arr[i]=i;cout<<a3;}A::A(Aarray)return0;{}for(inti=0;i<10;i++)arr[i]=array.arr[i];}A&A::operator=(constA&r){for(inti=0;i<10;i++)arr[i]=r.arr[i];returnthis;}constAoperator+(A&r1,A&r2){Are;for(inti=0;i<10;i++)re[i]=r1[i]+r2[i];returnre;}

SECTION3:Writetheprogramtosolvethefollowingproblem.(20points,20pointseach)CreateaninheritancehierarchythatcontainingabaseclassFilmandtwoderivedclassesFilm2DandFilm3D.ThebaseclassFilmshouldincludeadatamemberoftypestringtorepresentthefilmnameandadatamemberoftypefloattorepresentthefilmduration.Youshoulddesigntheconstructortoinitialthetwodatamembers.AndthereshouldbeapurevirtualfunctionnamedseeFilm.DerivedclassFilm2DshouldinheritthefunctionalityoftheFilm.Butalsoincludeadatamemberoftypeinttorepresentthefilmhall(電影廳).YouimplementtheconstructorandthevirtualfunctionseeFilm.DerivedclassFilm3DshouldalsoinheritthefunctionalityoftheFilm.andincludeanadditionaldatamemberoftypeinttorepresentthefilmprivateroom(電影包房).Youalsoshouldimplementtheconstructorandthevirtualfunc