复数运算c程序
#include <stdio.h>
#include <stdlib.h>

typedef struct{
float rmz;
float lmz;
}complex;
//构造一个复数
complex getAComplex(float a,float b){
 complex complex1;
 complex1.rmz=a;
 complex1.lmz=b;
 return complex1;
}
//两个复数求和
complex addComplex(complex complex1,complex complex2)
{ complex complex3;
 complex3.rmz=complex1.rmz+complex2.rmz;
 complex3.lmz=complex1.lmz+complex2.lmz;
 return complex3;
}
//求两个复数的差
complex subComplex(complex complex1,complex complex2)
{
 complex complex3;
 complex3.rmz=complex1.rmz-complex2.rmz;
 complex3.lmz=complex1.lmz-complex2.lmz;
 return complex3;
}
//求两个复数的积
complex productComplex(complex complex1,complex complex2)
{
 complex complex3;
 complex3.rmz=complex1.rmz*complex2.rmz-complex1.lmz*complex2.lmz;
 complex3.lmz=complex1.lmz*complex2.rmz+complex2.lmz*complex2.rmz;
 return complex3;
}
//分离出实部
float getComplexRmz(complex complex1)
{
 return complex1.rmz;
}
//分离出虚部
float getComplexLmz(complex complex1)
{
 return complex1.lmz;
}
//打印复数
void PrintCom(complex com1)
{
 if(com1.rmz>0||com1.lmz==0)   
 {
  if(com1.rmz!=0&&com1.lmz!=0)
   printf("%.2f+i%.2f\n",com1.rmz,com1.lmz);    
  else if(com1.rmz==0&&com1.lmz!=0) 
   printf("i%.2f\n",com1.lmz);
  else if(com1.rmz!=0&&com1.lmz==0)
   printf("%.2f\n",com1.rmz);    
  else if(com1.rmz==0&&com1.lmz==0)
   printf("%.2f\n",com1.rmz);
 }
 else
 {
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   printf("%.2f-i%.2f\n",com1.rmz,-com1.lmz);    
  else if(com1.rmz==0&&com1.lmz!=0)   
   printf("-i%.2f\n",-com1.lmz);
  else if(com1.rmz!=0&&com1.lmz==0)
   printf("%.2f\n",com1.rmz);
  else if(com1.rmz==0&&com1.lmz==0)
   printf("%.2f\n",com1.rmz);
 }
 
}
//主函数
void main()
{
 float rmz1,lmz1,rmz2,lmz2;
 complex com1,com2,com3;
 int choice;
 printf("1.求两个复数的和\t2.求两个复数的差\t3.求两个复数的积\n4.分离出实部\t\t5.分离出虚部\t\t6.退出\n\n");
 
 printf("输入第1个复数的实部和虚部:");
 scanf("%f,%f",&rmz1,&lmz1);
 com1=getAComplex(rmz1,lmz1);
 printf("所生成的复数1为:");
 PrintCom(com1);
 printf("输入第2个复数的实部和虚部:");
 scanf("%f,%f",&rmz2,&lmz2);
 com2=getAComplex(rmz2,lmz2);
 printf("所生成的复数2为:");
 PrintCom(com2);
  while(1){                    
        printf("输入你的选择:");
        scanf("%d",&choice);
        switch(choice)
     {
        case 1:
            com3=addComplex(com1,com2);
            printf("两个复数的和为:");
            PrintCom(com3);
            break;
        case 2:
            com3= subComplex(com1,com2);
            printf("两个复数的差为:");
            PrintCom(com3);
            break;
        case 3:
            com3=productComplex(com1,com2);
            printf("两个复数的积为：");
            PrintCom(com3);
            break;
        case 4:
            printf("复数1的实部为:%.2f\n",getComplexRmz(com1));  
            printf("复数2的实部为:%.2f\n", getComplexRmz(com2));
            break;
        case 5:
            printf("复数1的虚部为:%.2f\n",getComplexLmz(com1));  
            printf("复数2的虚部为:%.2f\n",getComplexLmz(com2)); 
            break;
        case 6:
            break;
        default:
            printf("请输入1～6的数字!\n"); break;
        } 
  if(choice==6) break;
     }
}617