第七周实验报告3

/* (程序头部注释开始)   * 程序的版权和版本声明部分   * Copyright (c) 2011, 烟台大学计算机学院学生    * All rights reserved.   * 文件名称：   Student.cpp               * 作    者：   计114-4 刘柏蔚   * 完成日期：    2012年   4  月  3 日   * 版 本 号：    V 1.0      * 对任务及求解方法的描述部分   * 输入描述：  * 问题描述：    * 程序输出：按要求输出    * 程序头部的注释结束   */#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_cut(Complex &c2);      Complex complex_mul(Complex &c2);      Complex complex_div(Complex &c2);      void display( );     private:      t real;       t imag;   };  template <class t>  Complex<t> Complex<t>::complex_add(Complex &c2)//模板类（类名 <>）  {      Complex c;            c.real = real + c2.real;      c.imag = imag + c2.imag;            return c;  }   template <class t>  Complex<t> Complex<t>::complex_cut(Complex &c2)//模板类（类名 <>）  {      Complex c;            c.real = real - c2.real;      c.imag = imag - c2.imag;            return c;  }   template <class t>  Complex<t> Complex<t>::complex_mul(Complex &c2)//模板类（类名 <>）  {      Complex c;            c.real = real*c2.real - imag*c2.imag;      c.imag = real*c2.imag + imag*c2.real;            return c;  }   template <class t>  Complex<t> Complex<t>::complex_div(Complex &c2)//模板类（类名 <>）  {      Complex c;            c.real = (real*c2.real + imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);      c.imag = (-real*c2.imag + imag*c2.real)/(c2.real*c2.real+c2.imag*c2.imag);            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;             c3 = c1.complex_add(c2);        cout << "c1+c2=";       c3.display( );            c3 = c1.complex_cut(c2);        cout << "c1-c2=";       c3.display( );            Complex<double> c4(3.1, 4.4), c5(5.34, -10.21), c6;             c6=c4.complex_add(c5);        cout << "c4+c5=";       c6.display( );            Complex<int> c7(3, 4), c8(5, -10), c9;             c9 = c7.complex_mul(c8);        cout << "c7×c8=";       c9.display( );            Complex<double> c10(3.1, 4.4), c11(5.34, -10.21), c12;             c12=c10.complex_div(c11);        cout << "c10÷ c11=";       c12.display( );            system("pause");      return 0;  }

我想说，模板给了尤其是像我这样的懒人一个偷懒的机会啊~很方便的东西啊