bool Connect() {

	//初始化网络
	WSADATA wsadata;
	WSAStartup(MAKEWORD(2, 2), &wsadata);
	if (0 != WSAStartup(MAKEWORD(2, 2), &wsadata))
		return false;

	if (LOBYTE(wsadata.wVersion) != 2 ||
		HIBYTE(wsadata.wVersion) != 2) {
		printf("请求协议版本失败!\n");
		return false;
	}

	//创建套接字
	sock_client = socket(AF_INET, SOCK_STREAM, 0);

	if (SOCKET_ERROR == sock_client) {

		printf("创建socket失败!\n");

		WSACleanup();

		return false;
	}
	 

	//解析域名为IP地址
	hostent* p = gethostbyname(sHost.c_str());

	if (p == NULL)
		return false;//解析失败

	//连接web服务器
	sockaddr_in sa;
	sa.sin_family = AF_INET;
	sa.sin_port = htons(80);//hrrp 默认端口80 https默认端口443
	//IP地址
	memcpy(&sa.sin_port, p->h_addr, 4);

	if (SOCKET_ERROR == connect(sock_client, (sockaddr*)&sa, sizeof(sa)) )
	{
		cout << "服务器连接失败" << endl;

		return false;
	}
	else
	{
		cout<<"服务器连接成功"<<endl;
		return true;
	}
	 
	

}

这样会输出 服务器连接失败；

 

 

解决方法？？