c++运算符重载习题(共14页)

1、精选优质文档-倾情为你奉上Task8-1/*1.定义一个复数类Complex，重载运算符“+”，使之能用于复数的加法运算。将运算符函数重载为非成员、非友元的普通函数。编写程序，求两个复数之和*/#include<iostream>using namespace std;class Complexpublic: Complex()real=0;imag=0; Complex(double r,double i)real=r;imag=i; void display(); double real; double imag;void Complex:display() cout<&

2、lt;"("<<real<<","<<imag<<"i)"Complex operator +(Complex &c1,Complex &c2) Complex p; p.real=c1.real+c2.real; p.imag=c1.imag+c2.imag; return p;int main() Complex c1(3,5),c2(2,5),c3; c1.display(); cout<<"+" c2.display(); cout

3、<<"=" c3=c1+c2; c3.display();Task8-2/*2.定义一个复数类Complex，重载运算符“+”、”-“、”*”、”/”，使之能用于复数的加、减、乘、除。运算符重载函数作为Complex类的成员函数，编程，分别求两个复数之和差积商。*/#include<iostream>using namespace std;class Complexpublic:Complex()real=0;imag=0;Complex(double r,double i)real=r;imag=i;Complex operator+(Comple

4、x &c2);Complex operator-(Complex &c2);Complex operator*(Complex &c2);Complex operator/(Complex &c2);void display();private: double real; double imag;Complex Complex:operator +(Complex &c2)Complex c;c.real=real+c2.real;c.imag=imag+c2.imag;return c;Complex Complex:operator -(Comple

5、x &c2)Complex c;c.real=real-c2.real;c.imag=imag-c2.imag;return c;Complex Complex:operator *(Complex &c2)Complex c;c.real=real*c2.real;c.imag=imag*c2.imag;return c;Complex Complex:operator /(Complex &c2)Complex c;c.real=(real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);c.imag=

6、(imag*c2.real-real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);return c;void Complex:display()cout<<"("<<real<<","<<imag<<"i)"<<endl;int main()Complex c1(3,4),c2(5,-10),c3;c3=c1+c2;cout<<"c1+c2="c3.display();c3=c1-c2;co

7、ut<<"c1-c2="c3.display();c3=c1*c2;cout<<"c1*c2="c3.display();c3=c1/c2;cout<<"c1/c2="c3.display();return 0;Task8-3/*3.有两个矩阵a和b，均为n行m列（m、n的值自己给出），求两个矩阵之和、差、积、商， 重载运算符“+”、”-“、”*”、”/”，使之能用于矩阵向加减乘除，如c=a+b、 c=a*b。*/#include <iostream>#define n 2#define

8、 m 3using namespace std;class Matrix /定义Matrix类 public: Matrix(); /默认构造函数 friend Matrix operator+(Matrix &,Matrix &); /重载运算符“+” friend Matrix operator-(Matrix &,Matrix &); friend Matrix operator*(Matrix &,Matrix &); friend Matrix operator/(Matrix &,Matrix &); void inp

9、ut(); /输入数据函数 void display(); /输出数据函数 private: int matnm; ;Matrix:Matrix() /定义构造函数for(int i=0;i<n;i+) for(int j=0;j<m;j+) matij=0;Matrix operator+(Matrix &a,Matrix &b) /定义重载运算符“+”函数Matrix c; for(int i=0;i<n;i+) for(int j=0;j<m;j+) c.matij=a.matij+b.matij; return c;Matrix operator

10、-(Matrix &a,Matrix &b) /定义重载运算符“+”函数Matrix c; for(int i=0;i<n;i+) for(int j=0;j<m;j+) c.matij=a.matij-b.matij; return c;Matrix operator*(Matrix &a,Matrix &b) /定义重载运算符“+”函数Matrix c; for(int i=0;i<n;i+) for(int j=0;j<m;j+) c.matij=a.matij*b.matij; return c;Matrix operator/(

11、Matrix &a,Matrix &b) /定义重载运算符“+”函数Matrix c; for(int i=0;i<n;i+) for(int j=0;j<m;j+) c.matij=a.matij/b.matij; return c;void Matrix:input() /定义输入数据函数cout<<"input value of matrix:"<<endl;int i,j;for(i=0;i<n;i+) for(j=0;j<m;j+) cin>>matij; void Matrix:disp

12、lay() /定义输出数据函数for (int i=0;i<n;i+) for(int j=0;j<m;j+) cout<<matij<<" " cout<<endl;int main() Matrix a,b,c; a.input(); b.input(); cout<<endl<<"Matrix a:"<<endl; a.display(); cout<<endl<<"Matrix b:"<<endl; b.di

13、splay(); c=a+b; /用重载运算符“+”实现两个矩阵相加 cout<<endl<<"Matrix c = Matrix a + Matrix b :"<<endl; c.display(); c=a-b; /用重载运算符“+”实现两个矩阵相加 cout<<endl<<"Matrix c = Matrix a - Matrix b :"<<endl; c.display(); c=a*b; /用重载运算符“+”实现两个矩阵相加 cout<<endl<<

14、;"Matrix c = Matrix a * Matrix b :"<<endl; c.display(); c=a/b; /用重载运算符“+”实现两个矩阵相加 cout<<endl<<"Matrix c = Matrix a / Matrix b :"<<endl; c.display(); return 0;Task8-4/*4.在第三题的基础上，重载运算符>>和<<, 使之能用于该矩阵的输入和输出。*/#include <iostream>#define n 2#

15、define m 3using namespace std;class Matrix /定义Matrix类 public: Matrix(); /默认构造函数 friend Matrix operator+(Matrix &,Matrix &); /重载运算符“+” friend Matrix operator-(Matrix &,Matrix &); friend Matrix operator*(Matrix &,Matrix &); friend Matrix operator/(Matrix &,Matrix &); fr

16、iend ostream& operator<<(ostream& ,Matrix&); friend istream& operator>>(istream& ,Matrix&); void input(); /输入数据函数 void display(); /输出数据函数 private: int matnm; ;Matrix:Matrix() /定义构造函数for(int i=0;i<n;i+) for(int j=0;j<m;j+) matij=0;Matrix operator+(Matrix &

17、;a,Matrix &b) /定义重载运算符“+”函数Matrix c; for(int i=0;i<n;i+) for(int j=0;j<m;j+) c.matij=a.matij+b.matij; return c;Matrix operator-(Matrix &a,Matrix &b) /定义重载运算符“+”函数Matrix c; for(int i=0;i<n;i+) for(int j=0;j<m;j+) c.matij=a.matij-b.matij; return c;Matrix operator*(Matrix &a

18、,Matrix &b) /定义重载运算符“+”函数Matrix c; for(int i=0;i<n;i+) for(int j=0;j<m;j+) c.matij=a.matij*b.matij; return c;Matrix operator/(Matrix &a,Matrix &b) /定义重载运算符“+”函数Matrix c; for(int i=0;i<n;i+) for(int j=0;j<m;j+) c.matij=a.matij/b.matij; return c;ostream& operator<<(os

19、tream& out,Matrix& c)for(int i=0;i<n;i+)for(int j=0;j<m;j+)cout<<c.matij<<'t' cout<<endl;return out;istream& operator>>(istream& in,Matrix& c)for(int i=0;i<n;i+)for(int j=0;j<m;j+)cin>>c.matij; cout<<endl;return in;void Matr

20、ix:input() /定义输入数据函数cout<<"input value of matrix:"<<endl;int i,j;for(i=0;i<n;i+) for(j=0;j<m;j+) cin>>matij; void Matrix:display() /定义输出数据函数for (int i=0;i<n;i+) for(int j=0;j<m;j+) cout<<matij<<" " cout<<endl;int main() Matrix a,b,c

21、; cout<<"请输入第一个n*m矩阵"<<endl; cin>>a; cout<<"请输入第二个n*m矩阵"<<endl; cin>>b; cout<<endl<<"Matrix a:"<<endl; cout<<a; cout<<endl<<"Matrix b:"<<endl;cout<<b; c=a+b; /用重载运算符“+”实现两个矩阵相加

22、 cout<<endl<<"Matrix c = Matrix a + Matrix b :"<<endl; c=a-b; /用重载运算符“+”实现两个矩阵相加 cout<<endl<<"Matrix c = Matrix a - Matrix b :"<<endl;cout<<c; c=a*b; /用重载运算符“+”实现两个矩阵相加 cout<<endl<<"Matrix c = Matrix a * Matrix b :"&

23、lt;<endl;cout<<c; c=a/b; /用重载运算符“+”实现两个矩阵相加 cout<<endl<<"Matrix c = Matrix a / Matrix b :"<<endl;cout<<c; return 0;Task8-5/*5.实现分数类中的运算符重载，在分数类中可以完成分数的加减乘除（运算后再化简）、求反、比较（6种关系）的运算。*/#include<iostream>#include<stdlib.h>using namespace std;int gcd(

24、int m,int n);class Fractionprivate: int nume; / 分子 int deno; / 分母public: Fraction(int nu=0,int de=1); /构造函数，初始化用 void Set(int nu=0,int de=1); /置值，改变值时用 Fraction operator+(Fraction &c2); Fraction operator-(Fraction &c2); Fraction operator*(Fraction &c2); Fraction operator/(Fraction &c

25、2); bool operator>=(Fraction &c2); Fraction operator-(); void display(); void Simplify(); /化简（使分子分母没有公因子）;Fraction:Fraction(int nu,int de) if(de!=0) nume=nu; deno=de; else cout<<"格式错误,程序退出n" exit(0); void Fraction: Set(int nu,int de) if(de!=0) nume=nu; deno=de; void Fraction:d

26、isplay() cout<<nume<<'/'<<deno<<endl;/求分子，分母最大公约数int gcd(int m,int n) int r; if(m<n) r=m; m=n; n=r; while(r=m%n) if(r=0) break; m=n; n=r; return n;/将分数化简void Fraction:Simplify() int n=gcd(nume,deno); nume=nume/n; deno=deno/n; cout<<nume<<'/'<

27、<deno;Fraction Fraction:operator+(Fraction &c2) Fraction c; c.deno=deno*c2.deno; c.nume=nume*c2.deno+c2.nume*deno; return c;Fraction Fraction:operator-(Fraction &c2) Fraction c; c.deno=deno*c2.deno; c.nume=nume*c2.deno-c2.nume*deno; return c;Fraction Fraction:operator*(Fraction &c2) Fraction c; c.deno=deno*c2.deno; c.nume=nume*c2.nume; ret