C++下TCP网络通信TCP_Demo例子(VS)

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已于 2024-11-13 15:55:08 修改

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分类专栏： C++ 文章标签： c++ tcp/ip

于 2024-03-29 09:41:54 首次发布

本文链接：https://blog.youkuaiyun.com/he1234519/article/details/137133647

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下面是一个简单的tcp网络通信demo。

客户端：

#include <WinSock2.h>
#include <WS2tcpip.h>
#include <iostream>
#include <string>

#pragma comment(lib, ws2_32.lib)

#define IP "192.168.0.100"
#define PORT 5555

void Cleanup(SOCKET socket)
{
	closesocket(socket);
	WSACleanup();
}

int main()
{
	WSADATA wsaData;
	WORD wVersionRequested = MAKEWORD(2, 2);
	if (WSAStartup(wVersionRequested, &wsaData) != 0)
	{
		std::cout << "加载winsock.dll失败！" << std::endl;
		return 0;
	}

	SOCKET clientSocket = socket(AF_INET, SOCK_STREAM, 0);
	if (clientSocket == INVALID_SOCKET)
	{
		std::cout << "创建套接字失败！错误代码：！" << WSAGetLastError() << std::endl;
		Cleanup(clientSocket);
		return 0;
	}

	sockaddr_in serverAddress;
	serverAddress.sin_family = AF_INET;
	serverAddress.sin_port = htons(PORT);
	inet_pton(AF_INET, IP, &serverAddress.sin_ad