初涉网络编程，急需一个小例程，实现功能：服务端与客户端（在Internet上，不是仅限局域网内）通过TCP实现数据传输。谢谢

[cokeclassic]

由于要在原有工程里增加网络通信功能，才能交差，时间紧，请帮忙，分不够再加。

[Star_sun117]

服务端:
void main()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;

wVersionRequested = MAKEWORD( 1, 1 );

err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 )
{

return;
}



if ( LOBYTE( wsaData.wVersion ) != 1 ||
HIBYTE( wsaData.wVersion ) != 1 )
{
WSACleanup( );
return;
}

SOCKET TcpSrv=socket(AF_INET,SOCK_STREAM,0);

SOCKADDR_IN addSrv;
addSrv.sin_addr.S_un.S_addr=inet_addr("192.168.0.60");
addSrv.sin_family=AF_INET;
addSrv.sin_port=htons(1500);

bind(TcpSrv,(sockaddr*)&addSrv,sizeof(SOCKADDR));
listen(TcpSrv,10);
while (1)
{
SOCKADDR_IN addclient;
int addsize=sizeof(sockaddr);
SOCKET Tcpclient=accept(TcpSrv,(sockaddr*)&addclient,&addsize);

char recvbuff[200];
recv(Tcpclient,recvbuff,200,0);
printf("%s\n",recvbuff);

send(Tcpclient,"Welcome to my World",strlen("Welcome To My Tcp Service")+1,0);
closesocket(Tcpclient);
WSACleanup();
}
}
客户端:
void main()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;

wVersionRequested = MAKEWORD( 1, 1 );

err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 )
{

return;
}



if ( LOBYTE( wsaData.wVersion ) != 1 ||
HIBYTE( wsaData.wVersion ) != 1 )
{
WSACleanup( );
return;
}

SOCKET Tcpclient=socket(AF_INET,SOCK_STREAM,0);

SOCKADDR_IN addclient;
addclient.sin_addr.S_un.S_addr=inet_addr("192.168.0.60");
addclient.sin_family=AF_INET;
addclient.sin_port=htons(1500);

connect(Tcpclient,(sockaddr*)&addclient,sizeof(sockaddr));
send(Tcpclient,"Hello",strlen("Hello")+1,0);
closesocket(Tcpclient);
WSACleanup();

}

[萧山夜雨]

www.vckbase.com/code
里面要什么样的都有。

[cokeclassic]

服务端可连接多个客户端的

[cokeclassic]

怎么没人理我啊

[nuaawenlin]

局域网和广域网的原理是一样的

只要服务器的ip是公网的ip就可以了