typedef struct number{
    double n1;
    double n2;
}num;
int main() {
    num s[2] = {0};
    for (int i = 0; i < 2;i++) {
        printf("输入实部和虚部:");
        scanf("%lf %lf",&(s[i].n1), &(s[i].n2));
    }
    printf("Sum=%.1lf+%.1lfi",s[0].n1 + s[1].n1,s[0].n2 + s[1].n2);
    return 0;
}

#include <iostream>
using namespace std;
struct Complex {
    double real;  // 实部
    double imag;  // 虚部
};
Complex addComplex(Complex a, Complex b) {
    Complex result;
    result.real = a.real + b.real;
    result.imag = a.imag + b.imag;
    return result;
}
int main() {
    Complex num1 = {3.0, 4.0};
    Complex num2 = {1.0, -2.0};
    Complex sum = addComplex(num1, num2);
    cout <<sum.real << (sum.imag >= 0 ? " + " : " - ")
         << abs(sum.imag) << "i" << endl;
    return 0;
}

1

#include <stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>
#include <windows.h>
struct img{
    double real;
    double  comp;
};
int main(void)
{
    struct img com1, com2;
    puts("请输入第一个虚数的实部和虚部");
    scanf("%lf%lf", &com1.real, &com1.comp);
    puts("请输入第二个虚数的实部和虚部");
    scanf("%lf%lf", &com2.real, &com2.comp);
    if ((com1.comp + com2.comp) >= 0) {
        printf("Sum=%lf+%lfi\n", com1.real + com2.real, com1.comp + com2.comp);
    }
    else {
        printf("Sum=%lf%lfi\n", com1.real + com2.real, com1.comp + com2.comp);
    }
    return 0;
}

#include<iostream>

using namespace std;

typedef struct complex

{

    double realNumber;

    double imaginaryNumber;

}Complex,*ComplexPointer;

ComplexPointer add(Complex & c1,Complex & c2)

{

    ComplexPointer cp=new Complex;

    cp->realNumber=c1.realNumber+c2.realNumber;

    cp->imaginaryNumber=c1.imaginaryNumber+c2.imaginaryNumber;

    return cp;

}

int main()

{

    Complex complexArray[2];

    for(int i=0;i<2;i++)

    {

    cout<<"ComplexNumber"<<i<<endl;

    cout<<"realNumber:\t";

    cin>>complexArray[i].realNumber;

    cout<<"imaginaryNumber:\t";

    cin>>complexArray[i].imaginaryNumber;

    }

    ComplexPointer cp=add(complexArray[0],complexArray[1]);

    cout<<cp->realNumber<<"+"<<cp->imaginaryNumber<<"i"<<endl;

}