倒序输出

源码

void print_arr_desc(int arr[], unsigned int len)

{

	if (len)

	{

		std::cout << "a[" << len - 1 << "]=" << arr[len - 1] << "\n";

		print_arr_desc(arr, len - 1);

	}

	// 确定结束条件

	else

		return;

}

测试结果

int arr[] = { 1, 2, 3, 4, 5 };

print_arr_desc(arr, 5);

顺序输出

代码

void print_arr_asc(int arr[], unsigned int len)

{

	if (len)

	{

		print_arr_asc(arr, len - 1);

		std::cout << "a[" << len - 1 << "]=" << arr[len - 1] << "\n";

	}

	else

		;

}

测试

int arr[] = { 1, 2, 3, 4, 5 };

print_arr_asc(arr, 5);

测试输出