嵌入式软件笔试题--gaotuoxunda

//输入www.baidu.com发生了什么，用了哪些层的协议
//https://blog..net/weixin_57321519/article/details/125490830 
#include<stdio.h>
#include "string.h"
#define sum(a,b) (a*b)
#define MIN(X,Y) ((X)>(Y)?(Y):(X))
void res(int data, int in);
int main(void)
{
          
   
	char a[8] = "abcs";
	int data = 0;
	int temp = 0;
	printf("%05d,%04d
", sizeof(a), strlen(a));//00008,0004

	printf("%d
", sum(1+2, 3+4));//1+2*3+4=11

	printf("请选择需要输入的进制数：10,16,8
");
	scanf_s("%d", &temp);
	printf("请输入的%d进制整数：
", temp);
	if (10==temp)
	{
          
   
		scanf_s("%d", &data);
		res(data, temp);
	}
	if (16 == temp)
	{
          
   
		scanf_s("%x", &data);
		res(data, temp);
	}
	if (8 == temp)
	{
          
   
		scanf_s("%o", &data);
		res(data, temp);
	}	
	return 0;
}

void res(int data, int in)
{
          
   
	char str[20];
	int i = 0;
	while (data)
	{
          
   
		str[i] = data % in + 0;
		i++;
		data /= in;
	}
	str[i] = ;
	printf("输出：");
	for (i = strlen(str)-1; i >= 0; i--)
	{
          
   
		printf("%c", str[i]);
	}
}

还有一个双向链表。。。。。