7-36 复数四则运算 (15分)

强行过检测点哈哈哈哈哈
但是整数还是不知道为什么过不了

#include <stdio.h>
//要考虑当值小于0.1或者大于-0.1时，该值为0 
void pack(double a1,double b1,double a2,double b2,char c,double s_num,double v_num);

void print_add(double a1,double b1,double a2,double b2)
{
	char c = '+';
	double s_num,v_num;
	s_num = a1+a2;
	v_num = b1+b2;
	pack(a1,b1,a2,b2,c,s_num,v_num);
}

void print_div(double a1,double b1,double a2,double b2)
{
	char c = '-';
	double s_num,v_num;
	s_num = a1-a2;
	v_num = b1-b2;
	pack(a1,b1,a2,b2,c,s_num,v_num);
}

void print_mult(double a1,double b1,double a2,double b2)
{
	char c = '*';
	double s_num,v_num;
	s_num = a1*a2-b1*b2;
	v_num = a1*b2+a2*b1;
	pack(a1,b1,a2,b2,c,s_num,v_num);
}

void print_did(double a1,double b1,double a2,double b2)
{
	char c = '/';
	double s_num,v_num;
	s_num = (a1*a2+b1*b2) / (a2*a2+b2*b2);
	v_num = (a2*b1-a1*b2) / (a2*a2+b2*b2);
	pack(a1,b1,a2,b2,c,s_num,v_num);
}


int main()
{
	char c = NULL;
	double a1,b1,a2,b2;
	scanf("%lf %lf %lf %lf",&a1,&b1,&a2,&b2);
	if(b1 < 0.1 && b1 > (-0.1)) {
		if(b2 < 0.1 && b2 > (-0.1)) {
			printf("%.1f+%.1f = %.1f\n",a1,a2,a1+a2);
			printf("%.1f-%.1f = %.1f\n",a1,a2,a1-a2);
			printf("%.1f*%.1f = %.1f\n",a1,a2,a1*a2);
			printf("%.1f/%.1f = %.1f\n",a1,a2,a1/a2);
		}
		else {
			print_add(a1,b1,a2,b2);
	printf("\n");
	print_div(a1,b1,a2,b2);
	printf("\n");
	print_mult(a1,b1,a2,b2);
	printf("\n");
	print_did(a1,b1,a2,b2);
	printf("\n");
		}
	}
	else {
		print_add(a1,b1,a2,b2);
	printf("\n");
	print_div(a1,b1,a2,b2);
	printf("\n");
	print_mult(a1,b1,a2,b2);
	printf("\n");
	print_did(a1,b1,a2,b2);
	printf("\n");
	}
	
	return 0;
}

void pack(double a1,double b1,double a2,double b2,char c,double s_num,double v_num)
{
	printf("(%.1f",a1);
	if(b1>0)
	{
		printf("+%.1fi) %c",b1,c);
	} 
	else if(b1 < 0)
	{
		printf("%.1fi) %c",b1,c);
	}
	else {
		printf(") %c ",c);
	}
	printf(" (%.1f",a2);
	if(b2>0)
	{
		printf("+%.1fi) = ",b2);
	} 
	else if(b2 < 0)
	{
		printf("%.1fi) = ",b2);
	}
	else {
		printf(") = ");
	}
	if(s_num < 0.1 && s_num > (-0.1)) {
		if(v_num < 0.1 && v_num > (-0.1))
		{
			printf("%.1f",s_num);
		}
		else {
			printf("%.1fi",v_num);
		}
	}
	else if(v_num < 0.1 && v_num > (-0.1)) {
		printf("%.1f",s_num);
	}
	else if(v_num < (-0.1)){
		printf("%.1f%.1fi",s_num,v_num);
	}
	else {
		printf("%.1f+%.1fi",s_num,v_num);
	}
}

来源：CSDN

作者：ABOOMMMMM

链接：https://blog.csdn.net/ABOOMMMMM/article/details/103605812