C 程序设计教程 第一版 (龚沛曾 杨志强 著) 高等教育出.doc

第八章 面相对象程序设计基础一、选择题1-4CACC 5AC6-10DBDCB 11-15AABDD二、阅读程序，写出运行结果1、conlcalled.con2called. mcon3called.a=0,b=0a=10,b=10 oa=10,b=202、 c0 51 5 网2 5 .3 5 案4 5 w3、 答4 后5 a6 课4、 d10,106,6 h7,95、 kx=0x=10x=7 .三、编程题w1、#includeclassCatprivate: intage; doubleweight; charcolor;public: voidset(inta,doublew,charc) age=a;weight=w;color=c; intgetage() returnage; doublegetweight() returnweight; chargetcolor() returncolor; voidprint() coutage=age,weight=weight,color=colorendl; m;voidmain() o Cata,b; a.set(4,7.8,r); c b.set(1,2.0,y); coutage=a.getage()endl; coutweight=a.getweight()endl; 网 coutcolor=a.getcolor()s; k voidout() puts(s); . intlen() char*p=s; while(*p!=0) wp+; return(p-s); friendMystringstrcat(Mystrings1,Mystrings2); Mystringstrcat(Mystrings1,Mystrings2) char*p=s1.s,*q=s2.s; while(*p!=0) p+; while(*q!=0) *p=*q; p+; q+; m *p=0; returns1; ovoidmain() c Mystringp1,p2,p3; p1.in();p2.in(); 网 p1.out();p2.out(); . coutp1长度为p1.len()endl; 案 coutp2长度为p2.len()endl; w p3=strcat(p1,p2); p3.out(); 后 cout连接以后的长度为p3.len()endl; a 课 d3、#includeiostream.hclassPoint hprivateo:ublex,y; kpublic: Point(doublea,doubleb) x=a;y=b; doublegetx() returnx; doublegety() wreturny; voidmove(doublei,doublej) x+=i;y+=j; ;classCircle:privatePointprivate: doubler;public: Circle(doublea,doubleb,doublet):Point(a,b) r=t; doublegetr() returnr; doublef1() return(Point:getx(); doublef2() m return(Point:gety(); doublearea() return3.14159*r*r; o; cvoidmain() PointA(2,2); CircleB(2,3,1); 网 coutPointAis(A.getx(),A.gety().endl; . A.move(3,2); 案 coutPointAis(A.getx(),A.gety().endl; w cout圆心:(B.f1(),B.f2(), 半径r=B.getr()endl; coutTheareaisB.area()endl; a 课 d4、#includeiostream.h hclasspointprivate:X,Y; k public: point(intx=0,inty=0) X=x; Y=y; voidprint() wcout点的坐标：(X,Y)endl; friendpointoperator+(point&a,point&b); ;pointoperator+(point&a,point&b) returnpoint(a.X+b.X,a.Y+b.Y); voidmain() pointp1(3,4),p2(6,8),p3; p1.print(); p2.print(); p3=p1+p2; p3.print(); m5、#includeiostream.h oclassteacher private: c inthour; public: teacher(inth=0) 网 hour=h; . intgeth() 案 w returnhour; 答 后 a voidprint() 课 cout课时数是：hour小时endl; virtualintwages() h return(0); ; k classprofessor:publicteacher public: professor(inth):teacher(h) w voidprint() w cout基本工资是：3000元endl; cout课时津贴为：40元/小时endl;w teacher:print(); virtualintwages() intw=geth(); return(3000+40*w); ;classassociateprofessor:publicteacherpublic: associateprofessor(inth):teacher(h) voidprint() m cout基本工资是：2500元endl; cout课时津贴为：25元/小时endl; teacher:print(); o virtualintwages() c intw=geth(); return(3000+40*w); 网; .classlecturer:publicteacher 案public: 答 w lecturer(inth):teacher(h) 后 voidprint() a 课 cout基本工资是：2000元endl;