C语言用递归调用实现阶乘

#define _CRT_SECURE_NO_WARNINGS
#include
#include

int getjc(int a)
{
	int jc;

	if (a>=17) {
		printf("阶乘越界!!n");
		exit(-1);
	}

	if (a == 1) {
		jc = 1;
	}else{
		jc = getjc(a - 1) *a;
	}
	
	return jc;
}

int main()
{
	int ret;
	int a;
	printf("请输入阶乘:n");
	scanf("%d", &a);
	ret = getjc(a);

	printf("第%d的阶乘是:%dn",a,ret);
	return 0;
}