C++实现复数四则运算

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1、#include//usingnamespacestd;classComplex{public:Complex(){real=0;imag=0;}Complex(doubler,doublei):real(r),imag(i){}friendistream&operator>>(istream&,Complex&);//友元函数，用来输入复数friendostream&operator<<(ostream&,Complex&);//友元函数，用来输出复数friendComplexoper

2、ator+(Complex&c1,Complex&c2);//重载加法友元函数声明friendComplexoperator-(Complex&c1,Complex&c2);//重载减法友元函数声明friendComplexoperator*(Complex&c1,Complex&c2);//重载乘法友元函数声明friendComplexoperator/(Complex&c1,Complex&c2);//重载除法友元函数声明private:doublereal;doubleimag;};istream&ope

3、rator>>(istream&input,Complex&c){cout<<"请输入复数的实部:";input>>c.real;cout<<"请输入复数的虚部:";input>>c.imag;returninput;}ostream&operator<<(ostream&output,Complex&c){if(c.real==0&&c.imag==0){output<<0;}elseif(c.real==0&&c.imag!=0){output<

4、&c.imag==0){output<0){output<

5、){returnComplex(c1.real+c2.real,c1.imag+c2.imag);}Complexoperator-(Complex&c1,Complex&c2){returnComplex(c1.real-c2.real,c1.imag-c2.imag);}Complexoperator*(Complex&c1,Complex&c2){returnComplex(c1.real*c2.real-c1.imag*c2.imag,c1.real*c2.imag+c1.imag*c2.real);}

6、Complexoperator/(Complex&c1,Complex&c2){returnComplex((c1.real*c2.real+c1.imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag),(c2.real*c1.imag-c1.real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag));}voidsuan(Complex&c1,Complex&c2,Complex&c3){intflag=1;charc;cout<<"

7、菜单:"<>c;switch(c){case'1':cin>>c1;cout<<"您输入的复数是:"<<

8、c1<>c2;cout<<"您输入的复数是:"<