简单计算器（利用函数数组指针）带图片

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最新推荐文章于 2024-04-29 22:26:31 发布

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分类专栏： c,linux

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#include<stdio.h>

double add(double a,double b)
{
	return a+b;
}
double sub(double a,double b)
{
	return a-b;
}
double mul(double a,double b)
{
	return a*b;
}
double div(double a,double b)
{
	return a/b;
}
int main()
{

	int input=1;
	double a;
	double b;
	double ret;
	while(input)
{
	double (*fun[])(double a,double b)={0,add,sub,mul,div};//定义函数数组指针
	printf("*******************\n");
	printf("***1 add   2 sub***\n");
	printf("***3 mul   4 div***\n");
	printf("*******************\n");
	scanf("%d",&input);
	printf("plese input\n");
	scanf("%lf,%lf",&a,&b);
	ret = fun[input](a,b);//读取数组内容
	printf("=%lf\n",ret);
}
	return 0;

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