#pragma comment(lib, "ws2_32.lib")

int main(int argc, char** argv)
{
 using namespace std;

 coutai_addr, res->ai_addrlen);

 char recvBuf[1024] = {''};
 int lenRecv = 0;

 struct sockaddr_storage storage;
 int len = sizeof(storage);
 memset(&storage, 0, len);

 lenRecv = recvfrom(sk, recvBuf, 1024, 0, (struct sockaddr*)&storage, &len);
 cout