课本课后习题答案

一、选择题、填一、选择题、填空答案1.C.14.5.10.二、找错、运行结错误原因：具有两个缺省构造函数（重复定义缺省构造函数运行结果Constructorcalled.（0,0,Constructorcalled.6,8,Constructorcalled.0,0,Constructorcalled.3,7,Destructorcalled.3,7,Destructorcalled.6,8,Destructorcalled.（0,0,Constructorcalled.0,0,Constructorcalled.3,7,Destructorcalled.3,7,Destructorcalled.3,7,Destructorcalled.3,7,Destructorcalled.Exitmain()运行结果运行结果Different!copied!Different!copied!三运行结果Different!copied!Different!copied!三、编程classcomplex{voidsetreal(double{}{image=i;doublegetreal({ doublegetimage({return(image);void{elseif(image>0)}void{doublea,b;}classLine{doublea,b;}classLine{{}voidSetPoint2(intx,inty,int{}double{(sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)+(z1-z2)*(z1-}{ voidGetPoint2(int&x,int&y,int{x=x2;y=y2;z=z2;void{cout<<"端点的坐cout<<"线段长度}void{intx,y,z;cin>>x>>y>>z;cin>>x>>y>>z;inta,b,c;}classPoint{voidSetPoint(intx1,int{x=x1;y=y1;voidGetPoint(int&x1,int{x1=x;y1=y;}{x=xx;voidSety(int{y=yy;}intintGety(){returny;class{voidSetPoint1(intxx,int{p[0].SetPoint(xx,yy);}{p[1].SetPoint(xx,yy);}{p[2].SetPoint(xx,yy);}{intp[i-p[j-returnintp[i-p[j-return(sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-}doublePerimeter()//{}{doublea,b,c,s;return(sqrt(s*(s-a)*(s-b)*(s-}void{cout<<"Point3:"<<p[2].Getx()<<','<<p[2].Gety()<<endl;cout<<"Distancefrompoint1topoint2:"<<Distance(1,2)<<endl;cout<<"Distancefrompoint2topoint3:"<<Distance(2,3)<<endl;cout<<"Distancefrompoint1topoint3:"<<Distance(1,3)<<endl;cout<<"Perimeter:"<<Perimeter()<<endl;}void{p[0].Setx(-p[1].Setx(-p[2].Setx(-}void{p[0].Sety(-p[1].Sety(-p[2].Sety(-}voidmove(intxoff,int{//}void}void{Trianglesan;} {voidSetDate(inty,intm,int{{Show();}}intLeapyear({return((year%4==0&&year%100!=0)||}intCheck({intif(month<1||month>12||day<1)}void}voidShow({}void{Dated;} class{{Math,Phisics,Eng,SetNum(char} SetName(char{} {} {} SetFaddr(char{} SetTel(char{} SetEmail(char{}voidSetScore(chartag,intscore); voidStudent::SetScore(chartag,int{{case'm':Math=score;break;case'e':Eng=score;break;case'c':Prog=score;}}void{cout<<"Num:"<<Num<<"\n";cout<<"Sex:"<<Sex<<"\n";cout<<"Tel:"<<Tel<<"\n";cout<<"Eng:"<<Eng<<"\n";}cout<<"Eng:"<<Eng<<"\n";}void{ stud.SetName("LiHong");} classTeacher{{SetNum(char} SetName(char{} } {} SetFaddr(char{} SetTel(char{} SetEmail(char{} SetHeadship(char{} {} SetSalary(int{} void{cout<<"Num:"<<Num<<"\n";cout<<"Name:"<<Name<<"\n";cout<<"Sex:"<<Sex<<"\n";cout<<"Faddr:"<<Faddr<<"\n";cout<<"Tel:"<<Tel<<"\n";cout<<"Email:"<<Email<<"\n";cout<<"Post:"<<Post<<"\n";cout<<"Salary:"<<Salary<<"\n";}void{Teacherteach;teach.SetName("WangSong");void{Teacherteach;teach.SetName("WangSong");}classcomplex{//新{real=0; //新{real=rr; complex(complex//新{} void{elseif(image>0)}void{}classLine{}classLine{Line(inta1=0,intb1=0,intc1=0,inta2=0,intb2=0,int{}{}double{(sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)+(z1-z2)*(z1-} void{cout<<"端点的坐cout<<"线段长度}void{}classPoint{Point(intx1=0,int{x=x1;y=y1;}{x=p.x;y=p.y;voidSet(intx1,int{x=x1;y=y1;voidGet(int&x1,int{x1=x;y1=y;class{Triangle(intx1=0,inty1=0,intx2=0,inty2=0,intx3=0,int{}Triangle(Pointpp1,Pointpp2,Point{p1=pp1;p2=pp2;}voidSetPoint1(intxx,int{}voidSetPoint2(intxx,int{}voidSetPoint3(Point{}voidGetPoint1(int*px,int{}voidGetPoint2(int}voidGetPoint2(int&px,int{p2.Get(px,}{}doubleDistance(Pointp1,Point{return(sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-}doublePerimeter()//{}{doublea,b,c,s;return(sqrt(s*(s-a)*(s-b)*(s-}void{cout<<"Distancefrompoint1topoint2:"<<Distance(p1,p2)<<endl;cout<<"Distancefrompoint2topoint3:"<<Distance(p2,p3)<<endl;cout<<"Distancefrompoint1topoint3:"<<Distance(p1,p3)<<endl;cout<<"Perimeter:"<