C++各套试题答案.docx

第一套设计并测试一个矩形类（Rectangle），属性为矩形的左上与右下角的坐标，矩形水平放置。操作为计算矩形周长与面积。输出见样张-*/#include #include using namespace std;/*Program*/class Rectangleprivate:double left,top,right,bottom,area,perimeter;public:Rectangle(double l=0,double t=0,double r=0,double b=0);Rectangle();void Assign(double l,double t,double r,double b);void Show();double getLeft()return left;double getTop()return top;double getRight()return right;double getBottom()return bottom;double Area()return fabs(left-right)*(top-bottom);double Perimeter()return 2*fabs(left-right)+(top-bottom);Rectangle:Rectangle(double l,double t,double r,double b)left=l;top=t;right=r;bottom=b;void Rectangle:Assign(double l,double t,double r,double b)left=l;top=t;right=r;bottom=b;void Rectangle:Show()coutleft-top point is (left,top)n;coutright-bottom point is (right,bottom)n;/* End */int main() Rectangle rect; rect.Show(); rect.Assign(100,200,300,400); rect.Show(); Rectangle rect1(0,0,200,200); rect1.Show(); Rectangle rect2(rect1); rect2.Show(); coutleft-top point is (rect.getLeft(),rect.getTop()n; coutright-bottom point is (rect.getRight(),rect.getBottom()n; cout面积rect.Area()t周长rect.Perimeter()endl; return 0;设计一个学校在册人员类（Person）。数据成员包括：身份证号（IdPerson），姓名（Name），性别（Sex），生日（Birthday）和家庭住址（HomeAddress）。成员函数包括人员信息的录入和显示。还包括构造函数与拷贝构造函数。设计一个合适的初始值。运行结果见样张。-*/#include#includeusing namespace std;class Person char IdPerson19; /身份证号,18位数字 char Name20; /姓名 char Sex; /性别 int Birthday; /生日,格式1986年8月18日写作19860818 char HomeAddress50; /家庭地址public: Person(char a19,char b20,char c,int d,char e50); Person(Person &); Person(); Person(); void PrintPersonInfo(); /输出人员信息 void inputPerson(); /输入人员信息 ;/*Program*/Person:Person(Person &Ps) strcpy(IdPerson,Ps.IdPerson);strcpy(Name,Ps.Name);Sex=Ps.Sex;Birthday=Ps.Birthday;strcpy(HomeAddress,Ps.HomeAddress);Person:Person(char*id,char*name,char sex,int birthday,char*homeadd)strcpy(IdPerson,id);strcpy(Name,name);Sex=sex;Birthday=birthday;strcpy(HomeAddress,homeadd);Person:Person()IdPerson0=0;Name0=0;Sex=m;Birthday=0;HomeAddress0=0;Person:Person();/* End */void Person:inputPerson() cout请输入身份证号,18位数字：endl; cin.getline(IdPerson,19); cout请输入姓名：endl; cin.getline(Name,20); cout请输入性别m或w：Sex; cout请输入生日,格式1986年8月18日写作19860818：Birthday; cin.get(); /吸收回车符,否则地址输不进去 cout请输入地址：endl; cin.getline(HomeAddress,50);void Person:PrintPersonInfo() int i; cout身份证号:IdPersonn姓名:Namen性别:; if(Sex=m |Sex=M)cout男n; else if(Sex=w |Sex=M)cout女n; else cout n; cout出生年月日:; i=Birthday; couti/10000年; i=i%10000; couti/100月i%100日n家庭住址:HomeAddressn;int main()Person Ps1(320102811226161,朱海鹏,m,19811226,南京市黄浦路1号),Ps2(Ps1),Ps3; Ps1.PrintPersonInfo(); Ps2.PrintPersonInfo(); Ps3.inputPerson(); Ps3.PrintPersonInfo(); return 0;补充构造一个日期时间类（Timedate），数据成员包括年、月、日和时、分、秒，函数成员包括设置日期时间和输出时间，其中年、月请用整型，并完成测试。输出见样张。注意：自己写的代码中不能有cout-*/#include #include using namespace std;/*Program*/class Timedateprivate:int hh,mm,ss,year,month,date;public:Timedate(int y,int m,int d);Timedate();Timedate();void list(); void putdate(int y,int m,int d); void puttime(int hh,int mm,int ss);Timedate:Timedate(int y,int m,int d)year=y;month=m;date=d;hh=0;mm=0;ss=0;Timedate:Timedate()year=0;month=0;date=0;hh=0;mm=0;ss=0;void Timedate:putdate(int y,int m,int d)year=y;month=m;date=d;void Timedate:puttime(int h,int m,int s)hh=h;mm=m;ss=s;/* End */void Timedate:list()/成员函数,直接访问私有的数据成员 coutyear/month/date :; switch(year) case 2000:cout2000;break; case 2001:cout2001;break; case 2002:cout2002;break; case 2003:cout2003;break; case 2004:cout2004;break; case 2005:cout2005;break; switch(month) case 1:cout/Jan;break; case 2:cout/Feb;break; case 3:cout/Mar;break; case 4:cout/Apr;break; case 5:cout/May;break; case 6:cout/Jun;break; case 7:cout/Jul;break; case 8:cout/Aug;break; case 9:cout/Sep;break; case 10:cout/Oct;break; case 11:cout/Nov;break; case 12:cout/Dec;break; cout/dateendl; couthour:minite:second :; couthh:mm:ssendl;int main() Timedate A(2004,3,3),B; A.list(); /输出A的日期和时间 B.list(); /输出B的日期和时间 B.putdate(2005,10,18); /更新B的日期 B.puttime(17,30,00); /更新B的时间 B.list(); /输出B的日期和时间 return 0;定义一个圆类（Circle），属性为半径（radius）、圆周长和面积，操作为输入半径并计算周长、面积，输出半径、周长和面积。要求定义构造函数（以半径为参数，缺省值为0，周长和面积在构造函数中生成）和拷贝构造函数。注意：类中不能有cout运行结果见样张。-*/#include#includeusing namespace std;const double PI=3.14159265;/*Program*/class Circleprivate:float radius,area,circumference;public:Circle(float=0); Cirlce(Circle&); void SetR(float Radius);float GetR()return radius;float GetCircumference()return circumference;float GetAreaCircle()return area;Circle:Circle(float Radius)radius=Radius;area=PI*radius*radius;circumference=PI*2*radius;Circle:Cirlce(Circle&cl)radius=cl.radius;area=cl.area;circumference=cl.circumference;void Circle:SetR(float Radius)radius=Radius;area=PI*radius*radius;circumference=PI*2*radius;/* End */int main() Circle cl1(2),cl2,cl3=cl1; cout圆半径:cl3.GetR()t圆周长:cl3.GetCircumference() t圆面积:cl3.GetAreaCircle()endl; cl2.SetR(4); cout圆半径:cl2.GetR()t圆周长:cl2.GetCircumference() t圆面积:cl2.GetAreaCircle()endl; return 0;#include#includeusing namespace std;const double PI=3.14159265;/*Program*/class Circledouble radius,area,perimeter;public:Circle(double r=0);Circle() void SetR(double r);double GetR(); double GetAreaCircle();double GetCircumference();Circle:Circle(double r) radius=r; area=PI*radius*radius; perimeter=2*PI*radius;void Circle:SetR(double r) radius=r;double Circle:GetR()return radius;double Circle:GetAreaCircle()return PI*radius*radius;double Circle:GetCircumference()return 2*PI*radius;/* End */int main() Circle cl1(2),cl2,cl3=cl1; cout圆半径:cl3.GetR()t圆周长:cl3.GetCircumference() t圆面积:cl3.GetAreaCircle()endl; cl2.SetR(4); cout圆半径:cl2.GetR()t圆周长:cl2.GetCircumference() t圆面积:cl2.GetAreaCircle()endl; return 0;第二套题目：定义一个圆形类，属性有半径和相应的成员函数。然后定义一个正方形类，属性有边长和相应的成员函数。再编写一个如下图所示的组合类，由一个正方型和一个圆形组成，要求该组合类能求出阴影部分面积和周长。通过主函数测试该类。组合图形见图：组合.JPG 输出结果见图：样张.JPG-*/#include #include using namespace std;const double PI=3.1416;/*Program*/class Circleprivate:double radius,area,circumference;public:Circle(double r=0);Circle();void Set(double r);double S()return PI*radius*radius;double L()return 2*PI*radius;Circle:Circle(double r)radius=r;void Circle:Set(double r)radius=r;class Boxprivate:double bian,area,circumference;public:Box(double b=0);Box();void Set(double b);double S()return bian*bian;double L()return 4*bian;Box:Box(double b)bian=b;void Box:Set(double b)bian=b;class NewStylepublic:Circle a;Box b;NewStyle(Circle a1,Box b1);NewStyle();void Set(Circle a2,Box b2);double S()return (a.S()-b.S();double L()return (a.L()+b.L();NewStyle:NewStyle(Circle a1,Box b1)a=a1;b=b1;void NewStyle:Set(Circle a2,Box b2)a=a2;b=b2;/* End */ int main() Circle A(4); /圆的半径为4 Box B(1); /正方形的边长为1 NewStyle C(A,B); cout自定义图形的面积C.S()endl; cout自定义图形的周长C.L()endl; A.Set(6); /圆的半径变为6 B.Set(2); /正方形的边长变为2 C.Set(A,B); cout自定义图形的面积C.S()endl; cout自定义图形的周长C.L()endl; return 0; 题目：请补足date类和card的成员函数定义。输出结果见图：样张.JPG-*/#include#include using namespace std;class date int year; int month; int day;public: date(int Year=0,int Month=0,int Day=0);/构造函数，给出初始的年月日 void setdate(int Year,int Month,int Day);/设置年月日 int get_year();/获取年份 int get_month();/获取月份 int get_day();/获取日期;class card int book;/图书编号 int reader;/借阅者编号 date borrow_day;/出借日期 int expiry;/借阅期限public: card(int Book, int Reader,date Borrow_day,int Expiry=60);/构造函数 date get_borrow_day();/获取出借日期 date get_return_day();/获取归还日期，归还日期=出借日期+借阅期限 int get_book();/获取图书编号 int get_reader();/获取借阅者编号 int get_expiry();/获取借阅期限;/*Program*/date:date(int Year,int Month,int Day)year=Year;month=Month;day=Day;void date:setdate(int Year,int Month,int Day)year=Year;month=Month;day=Day;int date:get_year()return year;int date:get_month()return month;int date:get_day()return day;card:card(int Book, int Reader,date Borrow_day,int Expiry):book(Book),reader(Reader),borrow_day(Borrow_day),expiry(Expiry)date card:get_borrow_day()return borrow_day;date card:get_return_day() date return_day;return_day.setdate(borrow_day.get_year(),borrow_day.get_month(),borrow_day.get_day()+expiry);int i=return_day.get_month(),a;int year=return_day.get_year();int day=return_day.get_day();if(i=1|i=3|i=5|i=7|i=8|i=10|i=12) a= 31; else if(i!=2) a =30; else if(year%4=0&year%100!=0)|(year%400=0) a=29; else a=28; while(daya) i+; day-=a; if(i=1|i=3|i=5|i=7|i=8|i=10|i=12) a= 31; else if(i!=2) a =30; else if(year%4=0&year%100!=0)|(year%400=0) a=29; else a=28; while(i12) year+; i-=12; return_day.setdate(year,i,day);return return_day; int card:get_book()return book;int card:get_reader()return reader;int card:get_expiry()return expiry;/* End */void main()int stu=2012678;/借阅者编号int cbook=100034;/图书编号date day(2012,1,31);/出借日期card c1(cbook,stu,day);/创建card对象c1/以下打印借书卡c1信息cout借书卡c1: endl;cout-endl;coutsetw(10)*图书号: c1.get_book()endl;coutsetw(10)*借书人: c1.get_reader()endl;coutsetw(10)*借阅期限: c1.get_expiry()endl;coutsetw(10)*出借日期: c1.get_borrow_day().get_year():c1.get_borrow_day().get_month():c1.get_borrow_day().get_day()endl;coutsetw(10)*归还日期: c1.get_return_day().get_year():c1.get_return_day().get_month():c1.get_return_day().get_day()endl;cout-endl;day.setdate(2012,12,6);/设置借书日期cbook=100077;/图书者编号card c2(cbook,stu,day,30);/创建card对象c2 /以下打印借书卡c2信息cout借书卡c2: endl;cout-endl;coutsetw(10)*图书号: c2.get_book()endl;coutsetw(10)*借书人: c2.get_reader()endl;coutsetw(10)*借阅期限: c2.get_expiry()endl;coutsetw(10)*出借日期: c2.get_borrow_day().get_year():c2.get_borrow_day().get_month():c2.get_borrow_day().get_day()endl;coutsetw(10)*归还日期: c2.get_return_day().get_year():c2.get_return_day().get_month():c2.get_return_day().get_day()endl;cout-endl;#include#include using namespace std;class date int year; int month; int day;public: date(int Year=0,int Month=0,int Day=0);/构造函数，给出初始的年月日 void setdate(int Year,int Month,int Day);/设置年月日 int get_year();/获取年份 int get_month();/获取月份 int get_day();/获取日期;class card int book;/图书编号 int reader;/借阅者编号 date borrow_day;/出借日期 int expiry;/借阅期限public: card(int Book, int Reader,date Borrow_day,int Expiry=60);/构造函数 date get_borrow_day();/获取出借日期 date get_return_day();/获取归还日期，归还日期=出借日期+借阅期限 int get_book();/获取图书编号 int get_reader();/获取借阅者编号 int get_expiry();/获取借阅期限;/*Program*/date:date(int Year,int Month,int Day)year=Year;month=Month;day=Day;void date:setdate(int Year,int Month,int Day)year=Year;month=Month;day=Day;int date:get_year()return year;int date:get_month()return month;int date:get_day()return day;card:card(int Book, int Reader,date Borrow_day,int Expiry)book=Book;reader=Reader;borrow_day.setdate(Borrow_day.get_year(),Borrow_day.get_month(),Borrow_day.get_day();expiry=Expiry;date card:get_borrow_day()return borrow_day;date card:get_return_day() int A11=31,28,31,30,31,30,31,31,30,31,30; int y,d,m;y=borrow_day.get_year(),d=borrow_day.get_day(),m=borrow_day.get_month(); for(int i=0,dd=0;i2)dd+;d=dd+d+expiry;if(y%4=0)if(d366)y+,d=d-366;m=1;else if(d365)y+;d=d-365;m=1;while(dAm-1)d-=Am-1;m+;if(y%4=0&y%100!=0|y%400=0)if(m2&d=1)m-;d=Am;if(y%4=0&y%100!=0|y%400=0)if(m2&d!=1)d-=1;date a(y,m,d);return a;int card:get_book()return book;int card:get_reader()return reader;int card:get_expiry()return expiry;/* End */void main()int stu=2012678;/借阅者编号int cbook=100034;/图书编号date day(2012,1,31);/出借日期card c1(cbook,stu,day);/创建card对象c1/以下打印借书卡c1信息cout借书卡c1: endl;cout-endl;coutsetw(10)*图书号: c1.get_book()endl;coutsetw(10)*借书人: c1.get_reader()endl;coutsetw(10)*借阅期限: c1.get_expiry()endl;coutsetw(10)*出借日期: c1.get_borrow_day().get_year():c1.get_borrow_day().get_month():c1.get_borrow_day().get_day()endl;coutsetw(10)*归还日期: c1.get_return_day().get_year():c1.get_return_day().get_month():c1.get_return_day().get_day()endl;cout-endl;day.setdate(2012,12,6);/设置借书日期cbook=100077;/图书者编号card c2(cbook,stu,day,30);/创建card对象c2 /以下打印借书卡c2信息cout借书卡c2: endl;cout-endl;coutsetw(10)*图书号: c2.get_book()endl;coutsetw(10)*借书人: c2.get_reader()endl;coutsetw(10)*借阅期限: c2.get_expiry()endl;coutsetw(10)*出借日期: c2.get_borrow_day().get_year():c2.get_borrow_day().get_month():c2.get_borrow_day().get_day()endl;coutsetw(10)*归还日期: c2.get_return_day().get_year():c2.get_return_day().get