main.cpp

TCP/IP进行通信的实例

#include "InitSock.h" //自己的头文件，统一
#include <stdio.h>
CInitSock initSock;  // 初始化Winsock库   
int main()
{
	SOCKET s = ::socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
	if(s == INVALID_SOCKET)
	{
	}
	sockaddr_in servAddr;
	servAddr.sin_family =AF_INET;
	servAddr.sin_port = htons(4567);
	servAddr.sin_addr.S_un.S_addr=inet_addr("192.168.1.101");
	if(::connect(s,(sockaddr*)&servAddr,sizeof(servAddr)) == -1)
	{
		printf("Fail connect() \n");
		return 0;
	}

	//接收数据
	char buff[256];
	int nRecv = ::recv(s,buff,256,0);
	if(nRecv >0)
	{
		buff[nRecv] ='\0';
		printf("接收数据：%s\n",buff);
	}	
	::closesocket(s);
	return 0;
}