模板----加减乘除

/*
* Copyright (c) 2013, 烟台大学计算机学院
* All rights reserved.
* 作    者：马广明
* 完成日期：2014 年 4 月 9 日
* 问题介绍: 模板类--加减乘除
* 版 本 号：v1.0
*/
#include 
  
   
using namespace std;
template
   
     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
    
      Complex
     
       Complex
      
       ::complex_add(Complex
       
         &c2) { Complex
        
          c; c.real=real+c2.real; c.imag=imag+c2.imag; return c; } template 
         
           Complex
          
            Complex
           
            ::complex_minus(Complex 
            
              &c2) { Complex 
             
               c; c.real=real-c2.real; c.imag=imag-c2.imag; return c; } template 
              
                Complex
               
                 Complex
                
                 ::complex_multiply(Complex 
                 
                   &c2) { Complex 
                  
                    c; c.real=real*c2.real-imag*c2.imag; c.imag=imag*c2.real+real*c2.imag; return c; } template 
                   
                     Complex
                    
                      Complex
                     
                      ::complex_divide(Complex 
                      






                        &c2) { Complex 
                       
                         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
                        
                          void Complex
                         
                          ::display( ) { cout<<"("<
                          
                            c1(3,4),c2(5,-10),c3; c3=c1.complex_add(c2); cout<<"c1+c2="; c3.display( ); Complex
                           
                             c4(3.1,4.4),c5(5.34,-10.21),c6; 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; }