第六周(类模板)

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/*
*copyright(c) 2015,烟台大学计算机学院
*All rights reserved。
*文件名称:第六周(类模板)

*作者:王忠
*完成日期:2015.4.14

*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()    {        real=0;        imag=0;    }    Complex(numtype r,numtype i)    {        real=r;        imag=i;    }    Complex complex_add(Complex &c2);    Complex complex_str(Complex &c2);    Complex complex_mul(Complex &c2);    Complex complex_div(Complex &c2);    void display();private:    numtype real,imag;};template<class numtype>Complex<numtype> Complex<numtype>::complex_add(Complex &c2){    Complex c;    c.real=real+c2.real;    c.imag=imag+c2.imag;    return c;}template<class numtype>Complex<numtype> Complex<numtype>::complex_str(Complex &c2){    Complex c;    c.real=real-c2.real;    c.imag=imag-c2.imag;    return c;}template<class numtype>Complex<numtype> Complex<numtype>::complex_mul(Complex &c2){    Complex  c;    c.real=real*c2.real-imag*c2.imag;    c.imag=imag*c2.real+real*c2.imag;    return c;}template<class numtype>Complex<numtype> Complex<numtype>::complex_div(Complex &c2){    Complex c;    numtype a;    a=c2.real*c2.real+c2.imag*c2.imag;    c.real=(real*c2.real+imag*c2.imag)/a;    c.imag=(imag*c2.real-real*c2.imag)/a;    return c;}template<class numtype>void Complex<numtype>::display(){    cout<<"("<<real<<","<<imag<<"i)"<<endl;}int main( ){    Complex<int> c1(3,4),c2(5,-10),c3;   //实部和虚部是int型    c3=c1.complex_add(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);    cout<<"c4+c5=";    c6.display( );    //下面测试减法、乘法和除法    c3=c1.complex_str(c2);    cout<<"c1-c2=";    c3.display( );    c3=c1.complex_mul(c2);    cout<<"c1*c2=";    c3.display( );    c3=c1.complex_div(c2);    cout<<"c1/c2=";    c3.display( );    return 0;}

 

 

当我模仿完乘除,运行出结果的时候,我才发现复数的乘除和加减不是一回事,把我给郁闷的,纠结啊

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