简易加减乘除的CODE

#include<stdio.h>

float add(float fNum1, float fNum2);
float minus(float fNum1, float fNum2);
float mutiply(float fNum1, float fNum2);
float divide(float fNum1, float fNum2);

void main()
{
	float fNum1, fNum2;

	float fAdd, fMinus, fMutiply, fDivide;

	scanf("%f%f", &fNum1, &fNum2);

	fAdd=add(fNum1,fNum2);

	fMinus=minus(fNum1,fNum2);

	fMutiply=mutiply(fNum1,fNum2);

	fDivide=divide(fNum1,fNum2);

	printf("%f\n%f\n%f\n%f\n",fAdd, fMinus, fMutiply, fDivide);

	
}
float add(float fNum1,  float fNum2)
{
 
	return fNum1 + fNum2;
	
 }

float minus(float fNum1, float fNum2)
 {
	
	return fNum1 - fNum2;
	
 }

float mutiply(float fNum1, float fNum2)
{

	return fNum1 * fNum2;

}

float divide(float fNum1, float fNum2)
{
	if(fNum2==0)
	{
		printf("error !");

		return 0;
	}

	return fNum1 / fNum2;
}