#include "stdio.h"
#include "math.h"
typedef struct{
float x;
float y;
}num;
void menu(){
printf("*****************請選擇功能*****************\n");
printf("*               1.生成復(fù)數(shù)                 *\n");
printf("*               2.復(fù)數(shù)求和                 *\n");
printf("*               3.復(fù)數(shù)求差                 *\n");
printf("*               4.復(fù)數(shù)求積                 *\n");
printf("*               5.分離實部和虛部           *\n");
printf("*               6.退出                     *\n");
printf("********************************************\n");
}
num Init(){
	num n;
	printf("請輸入實部:\n");
	scanf("%f",&n.x);
	printf("請輸入虛部:\n");
	scanf("%f",&n.y);
	return n;
}

void produce(num a)
{
if(a.y<0)printf("%f-i%f\n",a.x,-a.y);
else printf("%f+i%f\n",a.x,a.y);
} 

void add(num a,num b)
{
num c;
c.x=a.x+b.x;
c.y=a.y+b.y;
if(c.y<0)printf("%f-i%f\n",c.x,-c.y);
else printf("%f+i%f\n",c.x,c.y);

}

void sub(num a,num b)
{
num c;
c.x=a.x-b.x;
c.y=a.y-b.y;
if(c.y<0)printf("%f-i%f\n",c.x,-c.y);
else printf("%f+i%f\n",c.x,c.y);

}

void mult(num a,num b)
{num c;
c.x=a.x*b.x-a.y*b.y;
c.y=a.x*b.y+a.y*b.x;
if(c.y<0)printf("%f-i%f\n",c.x,-c.y);
else printf("%f+i%f\n",c.x,c.y);


}

void fengli(num a,num b)
{
    printf("第一個復(fù)數(shù)的實部為:%f\n",a.x);
if(a.y<0)
   printf("第一個復(fù)數(shù)的虛部為:-i%f\n",-a.y);
else 
   printf("第一個復(fù)數(shù)的虛部為:i%f\n",a.y);

printf("第二個復(fù)數(shù)的實部為:%f\n",b.x);

if(b.y>0)
   printf("第二個復(fù)數(shù)的虛部為:i%f\n",b.y);
else 
   printf("第二個復(fù)數(shù)的虛部為:-i%f\n",-b.y);



}



void main()
{num a,b;int t;
a=Init();
b=Init();

while(t!=6)
{
   menu();
   scanf("%d",&t);
   switch (t)
   {case 1:  produce(a); produce(b);break;
    case 2:add(a,b);break;
	case 3:sub(a,b);break;
	case 4:mult(a,b);break;
	case 5:fengli(a,b);break;
	case 6:break;
    default :printf("此選擇無效!\n");
}
}
}