※例3.1 void maino #include <iostre( A init(1. 1, 2.2) lud< th cout<“复数A的实部=“<< A. realcomplex(0<endl struct complex!/cou<“复数A的实部 double res “< A. imagcomplex(<end cou<“复数A的绝对值 double im -"<<A.abscomplexO<<endl void init( freal-r; iag I, double realcomplexo ∥取复数的实部值 freturn real; double imagcomplexo 取复数的虚部值 freturn imag; 1 double abscomplexo ∥复数的绝对值 i double t t=realrealtimag imag; return sqrt(t) 3:3 **例 3.1 #include <iostream.h> #include <math.h> struct complex{ double real; //复数的实部 double imag; //复数的虚部 void init (double r, double I) //给real和imag赋初值 { real=r; imag=i; } double realcomplex() //取复数的实部值 { return real;} double imagcomplex() //取复数的虚部值 { return imag;} double abscomplex() //求复数的绝对值 { double t; t=real*real+imag*imag; return sqrt(t); } } A; void main() { A.init(1.1,2.2); cout<<“复数A的实部= “<<A.realcomplex()<<endl; cout<<“复数A的实部 = “<<A.imagcomplex()<<endl; cout<<“复数A的绝对值 = “<<A.abscomplex()<<endl; }