废话不多说，直接上代码
复制代码 代码如下:
#include <iostream>
using namespace std;

typedef struct
{
double real;
double imag;
} complex;

//复数乘法
complex X_complex(complex a, complex b)
{
complex temp;

temp.real = a.real * b.real - a.imag * b.imag;
temp.imag = b.imag * a.real + a.imag * b.real;

return temp;
}

int main(int argc, char *argv[])
{
complex a,b,c;

a.real = 2;
a.imag = 3;
b.real = 4;
b.imag = 5;

c = X_complex(a,b);//结构体可以作为返回值，然后赋值给另一个相同结构体的变量
cout<<c.real<<","<<c.imag<<endl;

return 0;
}