C primer plus 第六版 第六章 第八題 程式設計練習答案

Github地址：φ(>ω<*) 這裡這裡。

#include<stdio.h>
int main(void)
{
	float first = 0;   //   Save input value.
	float second = 0;  //	Save input value.
	float result = 0;  //	Save result.

	printf("Please input two value (Enter 'q' to quit ):");

	for( result = 0; scanf("%f %f", &first, &second) == 2; /*Empty sentence*/)
	{
		result = (first - second) / (first * second);
		printf("The result is %f .\n\n", result);
		printf("Please input two value (Enter 'q' to quit ): " );
	}


	return 0;
}