第六周项目六（1）（2）

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/*Copyright(c)2014,烟台大学计算机学院  *Allrights reserved.  *文件名称:MADE2.cpp  *作    者:张生栋  *完成日期:2015年4月19日  *问题描述:阅读教材例10.1。该例实现了一个复数类，但是美中不足的是，复数类的实部和虚部都固定只能是double型的。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:无  *输出描述:略  *版 本 号：v1.0  */  #include <iostream>using namespace std;template<class T>class Complex{public:    Complex( )    {        real=0;        imag=0;    }    Complex(T r,T i)    {        real=r;        imag=i;    }    Complex complex_add(Complex &c2);    Complex complex_minus(Complex &c2);    Complex complex_multiply(Complex &c2);    Complex complex_divide(Complex &c2);    void display( );private:    T real;    T imag;};template<class T>Complex<T> Complex<T>::complex_add(Complex<T> &c2){    Complex<T> c;    c.real=real+c2.real;    c.imag=imag+c2.imag;    return c;}template <class T>Complex<T> Complex<T>::complex_minus(Complex <T> &c2){    Complex <T> c;    c.real=real-c2.real;    c.imag=imag-c2.imag;    return c;}template <class T>Complex<T> Complex<T>::complex_multiply(Complex <T> &c2){    Complex <T> c;    c.real=real*c2.real-imag*c2.imag;    c.imag=imag*c2.real+real*c2.imag;    return c;}template <class T>Complex<T> Complex<T>::complex_divide(Complex <T> &c2){    Complex <T> c;    T d=c2.real*c2.real+c2.imag*c2.imag;    c.real=(real*c2.real+imag*c2.imag)/d;    c.imag=(imag*c2.real-real*c2.imag)/d;    return c;}template<class T>void Complex<T>::display( ){    cout<<"("<<real<<","<<imag<<"i)"<<endl;}int main( ){    Complex<int> c1(3,4),c2(5,-10),c3;    cout<<"c1=";    c1.display( );    cout<<"c2=";    c2.display( );    c3=c1.complex_add(c2);    cout<<"c1+c2=";    c3.display( );    c3=c1.complex_minus(c2);    cout<<"c1-c2=";    c3.display( );    c3=c1.complex_multiply(c2);    cout<<"c1*c2=";    c3.display( );    c3=c1.complex_divide(c2);    cout<<"c1/c2=";    c3.display( );    cout<<endl;    Complex<double> c4(3.1,4.4),c5(5.34,-10.21),c6;    cout<<"c4=";    c4.display( );    cout<<"c5=";    c5.display( );    c6=c4.complex_add(c5);    cout<<"c4+c5=";    c6.display( );    c6=c4.complex_minus(c5);    cout<<"c4-c5=";    c6.display( );    c6=c4.complex_multiply(c5);    cout<<"c4*c5=";   c6.display( );    c6=c4.complex_divide(c5);    cout<<"c4/c5=";    c6.display( );    return 0;}
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