第六周上机实践项目6-复数模板类(1类外定义、2加减乘除)

来源:互联网 发布:网络大电影2016排行榜 编辑:程序博客网 时间:2024/04/29 21:20
/* *Copyright  (c)  2014,烟台大学计算机学院 *All rights reserved. *文件名称: test.cpp *作        者:满星辰 *完成日期:2015 年 4 月 15 日 *版本号:v1.0 * *问题描述:可以通过模板类的技术手段,设计Complex,使实部和虚部的类型为定义对象时指定的实际类型。          (1)要求类成员函数在类外定义。          (2)在此基础上,再实现减法、乘法和除法 *输入描述: *程序输出: */#include <iostream>using namespace std;template <class numtype>class Complex{public:    Complex(numtype r=0,numtype i=0):real(r),imag(i){};    //Complex(numtype r,numtype i);    Complex operator + (Complex &c2);    Complex operator - (Complex &c2);    Complex operator * (Complex &c2);    Complex operator / (Complex &c2);    void display();private:    numtype real;    numtype imag;};//Complex::Complex(numtype r=0,numtype i=0);real(r),imag(i){};template <class numtype>void Complex<numtype>::display(){    cout<<"("<<real<<","<<imag<<"i"<<")"<<endl;}template <class numtype>Complex<numtype> Complex<numtype>::operator + (Complex<numtype> &c2){    Complex c;    c.real=real+c2.real;    c.imag=imag+c2.imag;    return c;}template <class numtype>Complex<numtype> Complex<numtype>::operator - (Complex<numtype> &c2){    Complex c;    c.real=real-c2.real;    c.imag=imag-c2.imag;    return c;}template <class numtype>Complex<numtype> Complex<numtype>::operator * (Complex<numtype> &c2){    Complex c;    c.real=real*c2.real-imag*c2.imag;    c.imag=real*c2.imag+imag*c2.real;    return c;}template <class numtype>Complex<numtype> Complex<numtype>::operator / (Complex<numtype> &c2){    Complex c;    c.real=(real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);    c.imag=(imag*c2.real-real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);    return c;}int main( ){    Complex<int> c1(3,4),c2(5,-10),c3;   //实部和虚部是int型    //c3=c1.complex_add(c2);    c3=c1+c2;    cout<<"c1+c2=";    c3.display( );    Complex<double> c4(3.1,4.4),c5(5.34,-10.21),c6; //实部和虚部是double型    //c6=c4.complex_add(c5);    c6=c4+c5;    cout<<"c4+c5=";    c6.display( );    //下面测试减法、乘法和除法    //减法:    c3=c1-c2;    cout<<"c1-c2=";    c3.display( );    c6=c4-c5;    cout<<"c4-c5=";    c3.display( );    //乘法:    c3=c1*c2;    cout<<"c1*c2=";    c3.display( );    c6=c4*c5;    cout<<"c4*c5=";    c3.display( );    //除法:    c3=c1/c2;    cout<<"c1/c2=";    c3.display( );    c6=c4/c5;    cout<<"c4/c5=";    c3.display( );    return 0;}

图片:


心得:

因为没有提前看main函数,我就按照书上说的 设定重载运算符 来做了

有一点点疑问:定义了 ‘+’等运算符,在用真正的加号时会不会 自动使用 被重载的运算符?

虽然从测试来看不能。。。

0 0
原创粉丝点击