标签:c++ 生活
/*
*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
标签:c++ 生活
原文地址:http://blog.csdn.net/wangzhongwangmin/article/details/45061797