C++上機練習(xí)第四章.docx

1/*-【程序設(shè)計】-題目：設(shè)計并測試一個矩形類（Rectangle），屬性為矩形的左上與右下角的坐標(biāo)，矩形水平放置。操作為計算矩形周長與面積。輸出如下：left-top point is (100,200)right-bottom point is (300,400)面積40000 周長800-*/#include #include using namespace std;/*Program*/class Rectangle double left, top ;double right, bottom;public:Rectangle(double l=0, double t=0, double r=0, double b=0); Rectangle(); /析構(gòu)函數(shù)，在此函數(shù)體為空void Assign(double l,double t,double r,double b);double getLeft() return left; / 以下四個函數(shù)皆為內(nèi)聯(lián)成員函數(shù)double getRight() return right;double getTop()return top;double getBottom()return bottom;void Show();double Area();double Perimeter();/ 構(gòu)造函數(shù)，帶缺省參數(shù)，缺省值為全0，在聲明中指定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)/賦值left = l; top = t;right = r; bottom = b;void Rectangle:Show()/成員函數(shù)直接使用私有的數(shù)據(jù)成員coutleft-top point is (left,top)n;coutright-bottom point is (right,bottom)n;double Rectangle:Area()return fabs(right-left)*(bottom-top);double Rectangle:Perimeter()return 2*(fabs(right-left)+fabs(bottom-top);/* 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面積rect.Area()t周長rect.Perimeter()endl; return 0;2/*-【程序設(shè)計】-題目：補充構(gòu)造一個日期時間類（Timedate），數(shù)據(jù)成員包括年、月、日和時、分、秒，函數(shù)成員包括設(shè)置日期時間和輸出時間，其中年、月請用整型，并完成測試。注意：自己寫的代碼中不能有cout-*/#include #include using namespace std;/*Program*/class Timedateint year,month,date;int hh,mm,ss;public:Timedate(int=0,int =0,int =0);void putdate(int y,int m,int d);void puttime(int h,int m,int s);void list();Timedate:Timedate(int y,int m,int d)year=y;month=m;date=d;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()/成員函數(shù),直接訪問私有的數(shù)據(jù)成員 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(); B.list(); B.putdate(2005,10,18); B.puttime(17,30,00); B.list(); return 0;3/*-【程序設(shè)計】-題目：定義一個圓類（Circle），屬性為半徑（radius）、圓周長和面積，操作為輸入半徑并計算周長、面積，輸出半徑、周長和面積。要求定義構(gòu)造函數(shù)（以半徑為參數(shù)，缺省值為0，周長和面積在構(gòu)造函數(shù)中生成）和拷貝構(gòu)造函數(shù)。注意：類中不能有cout-*/#include#includeusing namespace std;const double PI=3.14159265;/*Program*/class Circleprivate:double r,Area,Circumference;public:Circle(double a=0);Circle(Circle &);void SetR(double R); double GetR()return r; double GetAreaCircle()return Area;double GetCircumference()return Circumference;Circle:Circle(double a)r=a;Area=PI*r*r;Circumference=2*PI*r;Circle:Circle(Circle &cl)r=cl.r;Area=cl.Area;Circumference=cl.Circumference;void Circle:SetR(double R)r=R;Area=PI*r*r;Circumference=2*PI*r;4/*-【程序設(shè)計】-題目：設(shè)計一個學(xué)校在冊人員類（Person）。數(shù)據(jù)成員包括：身份證號（IdPerson），姓名（Name），性別（Sex），生日（Birthday）和家庭住址（HomeAddress）。成員函數(shù)包括人員信息的錄入和顯示。還包括構(gòu)造函數(shù)與拷貝構(gòu)造函數(shù)。設(shè)計一個合適的初始值。-*/#include#includeusing namespace std;class Person char IdPerson19; /身份證號,18位數(shù)字 char Name20; /姓名 char Sex; /性別 int Birthday; /生日,格式1986年8月18日寫作19860818 char HomeAddress50; /家庭地址public: Person(char *,char *,char,int,char *); Person(Person &); Person(); Person(); void PrintPersonInfo(); void inputPerson(); /其他接口函數(shù);/*Program*/Person:Person(char *id,char *name,char sex,int birthday,char *homeadd)cout構(gòu)造Personendl;strcpy(IdPerson,id);strcpy(Name,name);Sex=sex;Birthday=birthday;strcpy(HomeAddress,homeadd);Person:Person()cout缺省構(gòu)造Personendl;IdPerson0=0;Name0=0;Sex=0;Birthday=0;HomeAddress0=0;Person:Person(Person & Ps)cout拷貝構(gòu)造Personendl;strcpy(IdPerson,Ps.IdPerson);strcpy(Name,Ps.Name);Sex=Ps.Sex;Birthday=Ps.Birthday;strcpy(HomeAddress,Ps.HomeAddress);Person:Person()cout析構(gòu)Personendl;/* End */void Person:inputPerson() cout請輸入身份證號,18位數(shù)字：endl; cin.getline(IdPerson,19); cout請輸入姓名：endl; cin.getline(Name,20); cout請輸入性別m或w：Sex; cout請輸入生日,格式1986年8月18日寫作19860818：Birthday; cin.get(); /吸收回車符,否則地址輸不進去 cout請輸入地址：endl; cin.getline(HomeAddress,50);void Person:PrintPersonInfo() int i; cout身份證號:IdPersonn姓名:Namen性別:; 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=Bir