這兩天在看網路程式設計，寫了點程式，發給大家看看.

首先看看流程：

然後直接上程式碼：
伺服器端，如果想了解客戶端的程式碼請檢視
https://blog.csdn.net/u011394598/article/details/83110068

#include <Windows.h>
#include <iostream>
using namespace std;

#define SERVER_IP "192.168.0.168"		//本地TCP伺服器IP
#define SERVER_PORT 60008				//本地TCP伺服器埠


int  main()
{
	//1、 加載入Winsock DLL的相應版本
	try
	{
		WORD sockVersion = MAKEWORD(2, 2);
		WSADATA wsaData;
		int result = WSAStartup(sockVersion, &wsaData);
		if (0 != result)
		{
			return false;
		}

		if (LOBYTE(wsaData.wVersion) != 2 || HIBYTE(wsaData.wVersion) != 2)
		{
			WSACleanup();
			return false;
		}
	}
	catch (...)
	{
		return false;
	}

	char buf[] = "Server: hello, I am a server.....";

	//2、建立用於監聽的套接字  
	SOCKET sockSrv = NULL;
	try
	{
		sockSrv = socket(AF_INET, SOCK_STREAM, 0);

		if (sockSrv == INVALID_SOCKET)
		{
			return 0;
		}
	}
	catch (...)
	{
		return 0;
	}

	SOCKADDR_IN addrSrv;
	addrSrv.sin_family = AF_INET;
	addrSrv.sin_port = htons(SERVER_PORT); //1024以上的埠號  
	addrSrv.sin_addr.S_un.S_addr = inet_addr("192.168.0.168");

	//3、套接字繫結地址
	int retVal = bind(sockSrv, (LPSOCKADDR)&addrSrv, sizeof(SOCKADDR_IN));
	if (retVal == SOCKET_ERROR){
		printf("Failed bind:%d\n", WSAGetLastError());
		return 0;
	}

	//4、 監聽
	if (listen(sockSrv, 10) == SOCKET_ERROR){
		printf("Listen failed:%d", WSAGetLastError());
		return 0;
	}

	SOCKADDR_IN addrClient;
	int len = sizeof(SOCKADDR);

	while (1)
	{
		//5、 等待客戶請求到來   通過對accpet函式的呼叫，可為待決連線佇列中的第一個連線請求提供服務
		SOCKET sockConn = accept(sockSrv, (SOCKADDR *)&addrClient, &len);
		if (sockConn == SOCKET_ERROR){
			printf("Accept failed:%d", WSAGetLastError());
			break;
		}
		printf("Accept client IP:[%s]\n", inet_ntoa(addrClient.sin_addr));
		
		//6、傳送資料  
		int iSend = send(sockConn, buf, sizeof(buf), 0);
		if (iSend == SOCKET_ERROR){
			printf("send failed");
			break;
		}
		char recvBuf[100];
		memset(recvBuf, 0, sizeof(recvBuf));
		//      //接收資料  
		recv(sockConn, recvBuf, sizeof(recvBuf), 0);
		printf("recv: %s\n", recvBuf);
		
		closesocket(sockConn);
	}

	closesocket(sockSrv);
	WSACleanup();
}