c语言——计算两个数的乘积

//计算两个数的乘积
#include<stdio.h>
#include<stdlib.h>
int main()
{double firstNumber,secondNumber,product;printf("两个浮点数：");scanf("%lf,%lf",&firstNumber,&secondNumber);product=firstNumber*secondNumber;printf("输出结果：%lf*%lf=%.2lf\n",firstNumber,secondNumber,product);system("pause");return 0; }