C++_編程題庫

1、精品31 定義盒子 Box 類，要求具有以下成員：長、寬、高分別為x,y,z，可設(shè)置盒子形狀；可計算盒子體積；可計算盒子的表面積。#include #include using namespace std;class Boxpublic:int weight;int length;int hight;void box_shape(int w, int l, int h);int box_volume(int w, int l, int h);int box_area(int w, int l, int h);int main()Box mybox;cout mybox.weight mybox

2、.length mybox.hight;int box_v, box_a;mybox.box_shape(mybox.weight, mybox.length, mybox.hight);box_v = mybox.box_volume(mybox.weight, mybox.length, mybox.hight);感謝下載載精品cout This boxs volume = box_v endl;box_a = mybox.box_area(mybox.weight, mybox.length, mybox.hight);cout This boxs area = box_a endl;v

3、oid Box:box_shape(int w, int l, int h)if(w = l & l = h)cout This is a Cube! endl;elsecout This is a cuboid! endl;int Box:box_volume(int w, int l, int h)return w * l * h;int Box:box_area(int w, int l, int h)return 2 * w * l + 2 * l * h + 2 * w * h;感謝下載載精品32 有兩個長方柱，其長、寬、高分別為：（1）30 ，20 ，10 ；（ 2）12 ，10

4、， 20 。分別求他們的體積。編一個基于對象的程序，在類中用帶參數(shù)的構(gòu)造函數(shù)。#include class Boxprivate:int length;int weight;int hight;public:Box(int, int, int);int volume();int main()using namespace std;Box mybox1(30, 20, 10);cout The first Boxs volume = mybox1.volume() endl;感謝下載載精品Box mybox2(12, 10, 30);cout The second Boxs volume = m

5、ybox2.volume() endl;return 0;Box:Box(int l, int w, int h)length = l;weight = w;hight = h;int Box:volume()return (hight * weight * length);感謝下載載精品33 有兩個長方柱，其長、寬、高分別為：（1）12 ，20 ，25 ；（ 2）10 ，30 ， 20 。分別求他們的體積。編一個基于對象的程序，且定義兩個構(gòu)造函數(shù)，其中一個有參數(shù)，一個無參數(shù)。#include class Boxprivate:int length;int wight;int height;p

6、ublic:Box();Box(int, int, int);int volume();int main()using namespace std;Box mybox1;cout The first boxs volume = mybox1.volume() endl;Box mybox2(10, 30, 20);cout The second boxs volume = mybox2.volume() endl;return 0;感謝下載載精品Box:Box()length = 12;wight = 20;height = 25;Box:Box(int l, int w, int h)len

7、gth = l;wight = w;height = h;int Box:volume()return length * wight * height;34 聲明一個類模板，利用它分別實現(xiàn)兩個整數(shù)、浮點數(shù)和字符的比較，求出大數(shù)和小數(shù)。感謝下載載精品#include using namespace std;templateclass Comparepublic:Compare(numtype a,numtype b)x=a;y=b;numtype max()return (xy)?x:y;numtype min()return (xy)?x:y;private:numtype x,y;int m

8、ain()Comparecmp1(3,4);coutcmp1.max() is the Maximum of two inteder numbers.endl;coutcmp1.min() is the Minimum of two inteder numbers.endlendl;Compare cmp2(45.78,93.6);coutcmp2.max() is the Maximum of two float numbers.endl;coutcmp2.min() is the Minimum of two float numbers.endlendl;Compare cmp3(a,A)

9、;coutcmp3.max() is the Maximum of two characters.endl;coutcmp3.min() is the Minimum of two characters.endl;return 0;感謝下載載精品35 建立一個對象數(shù)組， 內(nèi)放 5 個學生的數(shù)據(jù) （學號、成績），用指針指向數(shù)組首元素，輸出第 1 ，3，5 個學生的數(shù)據(jù)。初值自擬。#includeusing namespace std;class Studentpublic:Student(int n,int s):num(n),score(s)void display()coutnum scor

10、eendl;private:int num;int score;int main()Studentstud5=Student(01,70),Student(02,71),Student(03,72),Student(04,73),Student(05,74);Student *p=stud;for(int i=0;idisplay();return 0;36 建立一個對象數(shù)組，內(nèi)放5 個學生的數(shù)據(jù)（學號、成績），設(shè)立一個函數(shù)max ，用指向?qū)ο蟮闹羔樧骱瘮?shù)參數(shù)，在 max 函數(shù)中找出 5 個學生中成績最高者， 并輸出其學號。初值自擬。#includeusing namespace std;cl

11、ass Studentpublic:Student(int n,int s):num(n),score(s)int num;int score;int main()感謝下載載精品Studentstud5=Student(01,70),Student(02,71),Student(03,72),Student(04,73),Student(05,74);void max(Student *);Student *p=&stud0;max(p);return 0;void max(Student *arr)float max_score=arr0.score;for(int i=0;i5;i+)if

12、(max_scorearri.score)max_score=arri.score;coutmax_score arri.numendl;感謝下載載精品38.定義一個復數(shù)類Complex ，重載運算符“ + ”，使之能用于復數(shù)的加法運算。將運算符函數(shù)重載為非成員、非友元的普通函數(shù)。編寫程序，求兩個復數(shù)之和。初值自擬。#include class Complexprivate:double real;double image;public:Complex();Complex(double, double);double get_real();double get_image();Complex

13、operator + (Complex &, Complex &);int main()Complex s1(3, 4);Complex s2(5, -10);感謝下載載精品Complex c3;c3 = s1 + s2;std:cout s1 + s2 = ;std:cout ( c3.get_real() , c3.get_image() i) std:endl;/ Complex s1(3, 4);/ std:cout s1.get_real() std:endl;return 0;Complex:Complex(double r, double i)real = r;image = i

14、;Complex:Complex()real = 0;image = 0;感謝下載載精品double Complex:get_real()return real;double Complex:get_image()return image;Complex operator + (Complex & s1, Complex & s2)Complex c(s1.get_real() + s2.get_real(), s1.get_image() + s2.get_image();return c;39 定義一個復數(shù)類Complex ，重載運算符“”，“”，使之能用于復數(shù)的加，減運算，運算符重載函數(shù)

15、作為Complex類的成員函數(shù)。 編程序，分別求出兩個復數(shù)之和，差。初值自擬。#include 感謝下載載精品class Complexprivate:double real;double image;public:Complex();Complex(double, double);Complex operator + (Complex &);Complex operator - (Complex &);void display();int main()Complex s1(3, 4), s2(5, 6), c;c = s1 + s2;c.display();c = s1 - s2;c.dis

16、play();感謝下載載精品return 0;Complex:Complex()real = 0;image = 0;Complex:Complex(double r, double i)real = r;image = i;Complex Complex:operator + (Complex & s1)Complex c;c.real = s1.real + real;c.image = s1.image + image;return c;感謝下載載精品Complex Complex:operator - (Complex & s1)Complex c;c.real = real - s1

17、.real;c.image = image - s1.image;return c;void Complex:display()using namespace std;cout real image endl;40. 定義一個復數(shù)類 Complex ，重載運算符“”，使之能用于復數(shù)的加法運算。參加運算的兩個運算量可以都是類對象，也可以其中有一個是整數(shù)，順序任意。例如： c1+c2 ，i+c1 ，c1+i 均合法（設(shè) i 為整數(shù)， c1，c2 為復數(shù)）。編程序，分別求兩個復數(shù)之和、整數(shù)和復數(shù)之和。初值自擬。#include class Complex感謝下載載精品private:double r

18、eal;double imag;public:Complex()real=0;imag=0;Complex(double r,double i)real=r;imag=i;Complex operator+(Complex &c2);Complex operator+(int &i);friend Complex operator+(int&,Complex &);void display();Complex Complex:operator+(Complex &c)return Complex(real+c.real,imag+c.imag);Complex Complex:operator

19、+(int &i)return Complex(real+i,imag);感謝下載載精品void Complex:display()using namespace std;cout(real,imagi)endl;Complex operator+(int &i,Complex &c)return Complex(i+c.real,c.imag);int main()using namespace std;Complex c1(3,4),c2(5,-10),c3;int i=5;c3=c1+c2;coutc1+c2=;c3.display();c3=i+c1;couti+c1=;c3.disp

20、lay();c3=c1+i;感謝下載載精品coutc1+i=;c3.display();return 0;41. 有兩個矩陣 a 和 b ，均為 2 行 3 列。求兩個矩陣之和。重載運算符“+ ”，使之能用于矩陣相加。如c=a+b 。初值自擬。#include using namespace std;class Matrix/ 定義 Matrix類public:Matrix();/ 默認構(gòu)造函數(shù)friend Matrix operator+(Matrix &,Matrix &);/ 重載運算符“ + ”void input();/ 輸入數(shù)據(jù)函數(shù)void display();/ 輸出數(shù)據(jù)函數(shù)pr

21、ivate:int mat23;Matrix:Matrix()/ 定義構(gòu)造函數(shù)感謝下載載精品for(int i=0;i2;i+)for(int j=0;j3;j+)matij=0;Matrix operator+(Matrix &a,Matrix &b)/ 定義重載運算符“ + ”函數(shù)Matrix c;for(int i=0;i2;i+)for(int j=0;j3;j+)c.matij=a.matij+b.matij;return c;void Matrix:input()/ 定義輸入數(shù)據(jù)函數(shù)coutinput value of matrix:endl;for(int i=0;i2;i+)f

22、or(int j=0;jmatij;void Matrix:display()/ 定義輸出數(shù)據(jù)函數(shù)for (int i=0;i2;i+)for(int j=0;j3;j+)coutmatij ;感謝下載載精品coutendl;int main()Matrix a,b,c;a.input();b.input();coutendlMatrix a:endl;a.display();coutendlMatrix b:endl;b.display();c=a+b;/ 用重載運算符“ + ”實現(xiàn)兩個矩陣相加coutendlMatrix c = Matrix a + Matrix b :endl;c.di

23、splay();return 0;42. 將運算符“”重載為適用于復數(shù)加法，重載函數(shù)不作為成員函數(shù)，而放在類外，作為 Complex 類的友元函數(shù)。初值自擬。#include 感謝下載載精品class Compareprivate:int real;int imag;public:Compare();Compare(int, int);friend Compare operator+(Compare & c1, Compare & c2);void display();int main()Compare c1(3, 4), c2(2, 5), c3;c3 = c1 + c2;c3.displa

24、y();return 0;感謝下載載精品Compare:Compare()real = 0;imag = 0;Compare:Compare(int r, int i)real = r;imag = i;void Compare:display()using namespace std;cout real imag i endl;Compare operator+(Compare & c1, Compare & c2)Compare c(c1.real + c2.real, c1.imag + c2.imag);return c;感謝下載載精品43. 定義一個字符串類 String ，用來存放

25、不定長的字符串，重載運算符“”，用于兩個字符串的等于比較運算。初值自擬。44. 定義一個字符串類 String ，用來存放不定長的字符串，重載運算符 ，用于兩個字符串的大于的比較運算。初值自擬。#include #include using namespace std;class Stringpublic:String() p=NULL;String(char *str);friend bool operator(String &string1,String &string2);friend bool operator(String &string1,String &string2);frie

26、nd bool operator=(String &string1,String &string2);void display();private:感謝下載載精品char *p;String:String(char *str) p=str; void String:display() cout(String &string1,String &string2)if(strcmp(string1.p,string2.p)0)return true;elsereturn false;bool operator(String &string1,String &string2)if(strcmp(str

27、ing1.p,string2.p)(string1,string2)=1)string1.display();cout;string2.display();else if(operator(string1,string2)=1)string1.display();cout;string2.display();else if(operator=(string1,string2)=1)string1.display();cout=;string2.display();感謝下載載精品coutendl;int main()String string1(Hello),string2(Book),stri

28、ng3(Computer),string4(Hello);compare(string1,string2);compare(string2,string3);compare(string1,string4);return 0;46. 定義一個描述學生基本情況的類，數(shù)據(jù)成員包括姓名、學號、C+ 成績、英語和數(shù)學成績，成員函數(shù)包括輸出數(shù)據(jù)，求出總成績和平均成績。數(shù)據(jù)自擬。#include class Studentprivate:char * name;感謝下載載精品int id;int cpp_source;int eng_source;int math_source;public:Studen

29、t(char *, int, int, int, int);void sum_source();void avg_source();int main()Student s(John, 1, 90, 80, 97);s.sum_source();s.avg_source();return 0;Student:Student(char * n, int i, int cs, int es, int ms)name = n;感謝下載載精品id = i;cpp_source = cs;eng_source = es;math_source = ms;void Student:sum_source()s

30、td:cout name The sum of source: cpp_source+eng_source+math_source std:endl;void Student:avg_source()double avg;avg = (cpp_source + eng_source + math_source) / 3;std:cout The avg of source: avg std:endl;47. 先建立一個 Point （點）類，包含數(shù)據(jù)成員 x， y （坐標點）。以它為基類，派生出一個 Circle （圓）類，增加數(shù)據(jù)成員 r （半徑），再以 Circle 類為直接基類，派生出一

31、個 Cylinder （圓柱體）類，在增加數(shù)據(jù)成員 h （高）。編寫程序，重載運算符 “ ”，使之能夠用于輸出以上類對象。感謝下載載精品#include class Pointprotected:int x, y;public:Point()x = 0, y = 0;Point(int a, int b)this-x = a;this-y = b;void setX(int a)x = a;void setY(int b)y = b;int getX()return x;int getY()return y;class Circle:public Pointprotected:int r;感謝

32、下載載精品public:Circle(int x, int y, int r):Point(x, y)this-r = r;void setR(int a)r = a;int getR()return r;class Cylinder:public Circleprotected:int h;public:Cylinder():Circle(0, 0, 0),h(0)Cylinder(int x, int y, int r, int h):Circle(x, y, r)this-h = h;void setH(int a)h = a;int getH()return h;friend std:

33、istream & operator(std:istream &, Cylinder &);friend std:ostream & operator(std:istream & input, Cylinder & cc)int _x, _y, _r, _h;感謝下載載精品std:cout Enter the Cylinder: _x _y _r _h;cc.setX(_x);cc.setY(_y);cc.setR(_r);cc.setH(_h);return input;std:ostream & operator(std:ostream & os, Cylinder & cc)os cc.

34、getX() cc.getY() cc.getR() cc.getH() cc;cout cc;感謝下載載精品return 0;48. 寫一個程序，定義抽象類型 Shape ，由他派生三個類： Circle （圓形）， Rectangle（矩形）， Trapezoid （梯形），用一個函數(shù) printArea 分別輸出三者的面積， 3個圖形的數(shù)據(jù)在定義對象是給定。#include class Shapepublic:virtual double area() const = 0;class Circle:public Shapeprivate:double r;public:Circle(double a):r(a)virtual double area() const感謝下載載精品return 3.14 * r * r;class Rect