运算符重载.docx

1、运算符重载实验二 运算符重载1.实验目的：1学习定义和使用重载运算符。2熟悉拷贝构造函数。2.实验任务：1、对比通过函数来实现复数相加和通过重载运算符实现复数相加的不同之处。2、定义RMB类，数据成员有yuan、jf，请为该类定义构造函数、并重载“+”、“-”、“”。选做：定义账户类，有账号、户名、余额等属性，具有存款、取款等操作，可以把RMB类对象作为成员，进行存取款操作。3、以下程序实际要输出09之间每个数的平方，请用增加拷贝构造函数的方法避免存在的问题。#include using namespace std; class Vector public: Vector(int s=100)

2、; Vector(Vector & v); void Display(); void Set(); Vector();protected: int size; int* buffer; ; Vector:Vector(int s) buffer=new intsize=s; for(int i=0;isize; i+) bufferi=i*i; Vector:Vector(Vector & v) size=v.size; buffer=new intsize; for(int i=0;isize;i+) bufferi=v.bufferi;void Vector:Display() for(i

3、nt j=0; jsize; j+) coutbufferjendl; void Vector:Set() for(int j=0; jsize; j+) bufferj=j+1; Vector:Vector() deletebuffer; int main() Vector a(10); Vector b(a); a.Set(); b.Display(); return 0;3.列出代码1、（1）通过函数：#includeiostreamusing namespace std;class Complexpublic: Complex()real=0;imag=0; Complex(doubl

4、e r,double i)real=r;imag=i; Complex Add(Complex &c2); void display();private: double real; double imag;Complex Complex:Add(Complex &c2) Complex c; c.real=c2.real+real; c.imag=c2.imag+imag; return c;void Complex:display() cout real , imag i endl;int main() Complex c1(3,4),c2(5,-10),c3; c3=c1.Add(c2);

5、 cout c1=;c1.display(); cout c2=;c2.display(); cout c1+c2=;c3.display(); return 0;（2）通过运算符重载：#includeiostreamusing namespace std;class Complexpublic: Complex()real=0;imag=0; Complex(double r,double i)real=r;imag=i; Complex operator + (Complex &c2); void display();private: double real; double imag;Co

6、mplex Complex:operator +(Complex &c2) Complex c; c.real=c2.real+real; c.imag=c2.imag+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=;c1.display(); cout c2=;c2.display(); cout c1+c2=;c3.display(); return 0;2、 #includeiostreamus

7、ing namespace std;class RMBpublic: RMB()yuan=0;j=0;f=0; RMB(int r,int i)yuan=r;j=i;f=i; RMB operator + (RMB &c2); RMB operator - (RMB &c2); void display();public: int yuan; int j; int f;class AD:public RMBpublic: AD qu(RMB &c1,RMB &c2); AD cun(RMB &C1,RMB &c2);AD AD:qu(RMB &c1,RMB &c2) AD b; b.f=c1.

8、f-c2.f; if(b.f0) c1.j=c1.j-1; b.f=b.f+10; b.j=c1.j-c2.j; if(b.j0) c1.yuan=c1.yuan-1; b.j=b.j+10; b.yuan=c1.yuan-c2.yuan; else b.yuan=c1.yuan-c2.yuan; else b.j=c1.j-c2.j; if(b.j=10) b.j=b.j+1; b.f=b.f-10; b.j=c2.j+c1.j; if(b.j=10) b.yuan=b.yuan+1; b.j=b.j-10; return b;RMB RMB:operator +(RMB &c2) RMB

9、c; c.yuan=c2.yuan+yuan; c.j=c2.j+j; c.f=c2.f+f; return c;RMB RMB:operator -(RMB &c2) RMB c; c.yuan=c2.yuan-yuan; c.j=c2.j-j; c.f=c2.f-f; return c;void RMB:display() cout共计：; cout yuan 元 j 角 f 分 endl;int main() int i,n; AD c1,c2,c3; cout n; cout请输入当前存款endl; cout c1.yuan; coutc1.j; cout c1.f; cout 请选择

10、操作：1、存款 2、取款；i; if(i=1) cout c2.yuan; cout c2.j; cout c2.f; c3=c1.cun(c1,c2); c3.display(); if(c3.yuann) cout endl; cout 警示：账户余额少于n元！endl; cout endl; else cout endl; else if(i=2) cout c2.yuan; cout c2.j; cout c2.f; c3=c1.qu(c1,c2); c3.display(); if(c3.yuann) cout endl; cout 警示：账户余额少于n元！endl; cout en

11、dl; else cout endl; else cout 输入错误endl; return 0;3、#include using namespace std; class Vector public: Vector(int s=100); Vector(Vector & v); void Display(); void Set(); Vector();protected: int size; int* buffer; ; Vector:Vector(int s) buffer=new intsize=s; for(int i=0;isize; i+) bufferi=i*i; Vector:

12、Vector(Vector & v) size=v.size; buffer=new intsize; for(int i=0;isize;i+) bufferi=v.bufferi;void Vector:Display() for(int j=0; jsize; j+) coutbufferjendl; void Vector:Set() for(int j=0; jsize; j+) bufferj=j+1; Vector:Vector() deletebuffer; int main() Vector a(10); Vector b(a); a.Set(); b.Display(); return 0;4.结果分析（1）不同之处：通过比较，发现用运算符重载在代码形式上更加简便，更加直观。 （2）（3）