C++中的復(fù)數(shù)類

1、C+中的復(fù)數(shù)類/ 類的定義( mycomplex.h )#i nclude #if ndef mycomplex_h#defi ne mycomplex_hclass complexprivate:float real;float image;public:complex(float=0.0,float=0.0); /構(gòu)造函數(shù)complex(c onst complex &c);/拷貝構(gòu)造函數(shù)/以下為運(yùn)算函數(shù)complex add(c onst complex &c) con st; /加運(yùn)算complex sub(c onst complex &c) con st; /減運(yùn)算complex

2、mul(c onst complex &c) con st; /乘運(yùn)算complex div(c onst complex &c) con st; /除運(yùn)算/ 以下為普通成員函數(shù)float getreal(void) con st;/獲取實(shí)部float getimage(void) con st;/獲取虛部void setcomplex(float r,float i);/重新設(shè)定復(fù)數(shù)值/以下為輸出輸入函數(shù)重載friendostream& operator(istream& in, complex& c);/重載/以下為運(yùn)算符重載frie nd complex operator+(float

3、r,const complex& c); /frie nd complex operator+(i nt r,const complex& c);frie nd complex operator-float r,const complex& c);friend complex operator-(int r,const complex& c);frie nd complex operator*(float r,c onst complex& c);friend complex operator*(int r,const complex& c);frie nd complex operator+

4、(c onst complex& c,float r);frie nd complex operator+(c onst complex& c,i nt r);frie nd complex operator-(c onst complex& c,float r);frie nd complex operator-(c onst complex& c,i nt r);frie nd complex operator*(c onst complex& c,float r);frie nd complex operator*(c onst complex& c,i nt r);frie nd co

5、mplex operator/(float r,const complex& c);frie nd complex operator/ nt r,c onst complex& c);frie nd complex operator/(c on st complex& c,float r);優(yōu)質(zhì)范文.frie nd complex operator/(c onst complex& c,i nt r);frie nd complex operator+(c onst complex& c1,c onst complex& c2); frie nd complex operator-(c ons

6、t complex& c1,c onst complex& c2);frie nd complex operator*(c onst complex& c1,c onst complex& c2); frie nd complex operator/(c onst complex& c1,c onst complex& c2);/定義虛數(shù)單位ieconst complex ie(0,1);#en dif/ 類的實(shí)現(xiàn)(mycomplex.cpp)#i nclude #in clude mycomplex.h/構(gòu)造函數(shù)complex:complex(float r,float i)real=r;i

7、mage=i;/拷貝構(gòu)造函數(shù)complex:complex(c onst complex &c)real=c.real;image=c.image;/加運(yùn)算complex complex:add(c onst complex &c) constcomplex t;t.rea匸real+c.real;t.image=image+c.image;return t;/減運(yùn)算complex complex:sub(c onst complex &c) const complex t;優(yōu)質(zhì)范文.t.rea匸real-c.real;t.image=image-c.image;return t;/乘運(yùn)算co

8、mplex complex:mul(c onst complex &c) constcomplex t;t.real=real*c.real-image*c.image;t.image=image*c.real+real*c.image;return t;/除運(yùn)算complex complex:div(c onst complex &c) constif(!(c.real|c.image)撓畯？尼分母不能為零endl;exit;complex t;/獲取實(shí)部float complex:getreal(void) constreturn real;/獲取虛部float complex:getim

9、age(void) constreturn image;/設(shè)定復(fù)數(shù)值void complex:setcomplex(float r,float i)優(yōu)質(zhì)范文.real=r;image=i;/輸出重載ostream& operator0)outvvc.realvv+vvc.imagevvi;if(c.image(istream& in, complex& c)in c.realc.image;return in;/以下為運(yùn)算符重載complex operator+(float r,const complex& c)complex t;return t;complex operator+(i nt

10、 r,const complex& c)complex t;t.rea匸r+c.real;t.image=c.image;return t;complex operator-float r,const complex& c)complex t;t.rea匸r-c.real;t.image=c.image;優(yōu)質(zhì)范文.return t;complex operator- nt r,c onst complex& c)complex t;t.rea匸r-c.real;t.image=c.image;return t;complex operator*(float r,c onst complex&

11、c)complex t;t.real=r*c.real;t.image=r*c.image;return t;complex operator*(i nt r,const complex& c)complex t;return t;complex operator+(c onst complex& c,float r)complex t;t.rea匸r+c.real;t.image=c.image;return t;complex operator+(c onst complex& c,i nt r)complex t;t.rea匸r+c.real;t.image=c.image;return

12、 t;complex operator-(c onst complex& c,float r)優(yōu)質(zhì)范文.complex t;t.rea匸r-c.real;t.image=c.image;return t;complex operator-(c onst complex& c,i nt r)complex t;t.rea匸r-c.real;t.image=c.image;return t;complex operator*(c onst complex& c,float r)complex t;return t;complex operator*(c onst complex& c,i nt r

13、)complex t;t.real=r*c.real;t.image=r*c.image;return t;complex operator/(float r,const complex& c)complex t(r,0);return t.div(c);complex operator/ nt r,c onst complex& c)complex t(float)r,O);return t.div(c);complex operator/(c onst complex& c,float r)優(yōu)質(zhì)范文.complex t;t.rea匸c.real/r;t.image=c.image/r;re

14、turn t;complex operator/(c onst complex& c,i nt r)complex t;t.real=c.real/(float)r;t.image=c.image/(float)r;return t;complex operator+(c onst complex& c1,c onst complex& c2)retur n c1.add(c2);complex operator-on st complex& c1,c onst complex& c2)retur n c1.sub(c2);complex operator*(c on st complex&

15、c1,c onst complex& c2)retur n c1.mul(c2);complex operator/(c onst complex& c1,c onst complex& c2)return c1.div(c2);/類的測試(test.cpp)#i nclude #in clude mycomplex.hint mai n()/測試函數(shù)運(yùn)算complex c1,c2;c1.setcomplex(1,2);優(yōu)質(zhì)范文.c2.setcomplex(2,3); coutvc1+c2=vvc1.add(c2)vve ndl; coutvc1-c2=vvc1.sub(c2)vve ndl;coutvc1*c2=vvc1.mul(c2)vve ndl; coutvc1/c2=vvc1.div(c2)vve ndl;/測試運(yùn)算符重載complex c;c=1+2*ie+3;coutce ndl;c=1+2*ie/3;coutce ndl;c=(1+2*ie)*(3+4*ie);coutcendl;/ 測試