#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<stdlib.h>
int main(void)
{
float num1, num2, dif, pro;
printf("请输入两个浮点数:\n");
while (scanf("%f%f", &num1, &num2) != 0)
{
dif = num1 - num2;
pro = num1 * num2;
printf("差 / 积 = %.2f\n",dif/pro);
printf("请继续输入两个浮点数(q结束):\n");
}
system("pause");
return 0;
}