请帮我用C语言解答呀，谢谢了

Question

3.定义一个函数：double max(double a,double b,double c)，求三个参数的最大值。编程，从键盘输入任意3个数，调用以上函数求最大值并输出。

Answer 1

double max(double a,double b,double c)
{
	double m = a;
	if(m < b)
		m=b;
	if(m < c)
		m=c;
	return m;
}

int main(void){
 
	double a,b,c;
	scanf_s("%lf",&a);
	scanf_s("%lf",&b);
	scanf_s("%lf",&c);
	double m = max(a,b,c);
	printf("最大值为:%lf",m);

	return 0;
}