＋设为首页 ＋添加到收藏夹
第一个例子就这样，一直看到后面都没有一个可执行的实例，实在打击积极性。请帮忙指点一下，代码如下：
// NOTE: There are no command parameters.
//tcpclient:
#include <winsock2.h>
#include <stdio.h>
void main(void)
{
WSADATA wsaData;
SOCKET ListeningSocket;
SOCKET NewConnection;
SOCKADDR_IN ServerAddr;
SOCKADDR_IN ClientAddr;
int ClientAddrLen;
int Port = 5150;
int Ret;
char DataBuffer[1024];
// Initialize Winsock version 2.2
if ((Ret = WSAStartup(MAKEWORD(2,2), &wsaData)) != 0)
{
// NOTE: Since Winsock failed to load we cannot use WSAGetLastError
// to determine the error code as is normally done when a Winsock
// API fails. We have to report the return status of the function.
printf("WSAStartup failed with error %d\n", Ret);
return;
}
// Create a new socket to listening for client connections.
if ((ListeningSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP))
== INVALID_SOCKET)
{
printf("socket failed with error %d\n", WSAGetLastError());
WSACleanup();
return;
}
// Setup a SOCKADDR_IN structure that will tell bind that we
// want to listen for connections on all interfaces using port
// 5150. Notice how we convert the Port variable from host byte
// order to network byte order.
ServerAddr.sin_family = AF_INET;
ServerAddr.sin_port = htons(Port);
ServerAddr.sin_addr.s_addr = htonl(INADDR_ANY);
// Associate the address information with the socket using bind.
if (bind(ListeningSocket, (SOCKADDR *)&ServerAddr, sizeof(ServerAddr))
== SOCKET_ERROR)
{
printf("bind failed with error %d\n", WSAGetLastError());
closesocket(ListeningSocket);
WSACleanup();
return;
}
// Listen for client connections. We used a backlog of 5 which is
// normal for many applications.
if (listen(ListeningSocket, 5) == SOCKET_ERROR)
{
printf("listen failed with error %d\n", WSAGetLastError());
closesocket(ListeningSocket);
WSACleanup();
return;
}
printf("We are awaiting a connection on port %d.\n", Port);
// Accept a new connection when one arrives.
if ((NewConnection = accept(ListeningSocket, (SOCKADDR *) &ClientAddr,
&ClientAddrLen)) == INVALID_SOCKET)
{
printf("accept failed with error %d\n", WSAGetLastError());
closesocket(ListeningSocket);
WSACleanup();
return;
}
printf("We successfully got a connection from %s:%d.\n",
inet_ntoa(ClientAddr.sin_addr), ntohs(ClientAddr.sin_port));
// At this point you can do two things with these sockets. Await
// for more connections by calling accept again on ListeningSocket
// and start sending or receiving data on NewConnection. For
// simplicity We will stop listening for more connections by closing
// ListeningSocket. We will start sending and receiving data on
// NewConnection.
closesocket(ListeningSocket);
// Start sending and receiving data on NewConnection. For simplicity,
// we will just receive some data and report how many bytes were
// received.
printf("We are waiting to receive data...\n");
if ((Ret = recv(NewConnection, DataBuffer, sizeof(DataBuffer), 0))
== SOCKET_ERROR)
{
printf("recv failed with error %d\n", WSAGetLastError());
closesocket(NewConnection);
WSACleanup();
return;
}
printf("We successfully received %d byte(s).\n", Ret);
// For this application we do not plan to do anything else with the
// connection so we will just close the connection.
printf("We are now going to close the client connection.\n");
closesocket(NewConnection);
// When your application is finished handling the connections
// call WSACleanup.
WSACleanup();
}
你把所有的SOCKET事件都放到一起顺序执行，完了就退出了，当然没结果了。
要加：#pragma comment(lib,"WS2_32"),编译WINSOCK2.H的程序时，必须链接到WS2.lib
库
没有lib库文件，link的时候编译器会提示的
