服务器
#include<winsock2.h>
#include<stdio.h>
#include<conio.h>
#pragma comment(lib, "ws2_32.lib")
int main()
{
WSADATA wsaData;
SOCKET sockServer;
SOCKADDR_IN addrServer;
SOCKET sockClient;
SOCKADDR_IN addrClient;
WSAStartup(MAKEWORD(2, 2), &wsaData);
sockServer = socket(AF_INET, SOCK_STREAM, 0);
addrServer.sin_addr.S_un.S_addr = htonl(INADDR_ANY);//INADDR_ANY表示任何IP
addrServer.sin_family = AF_INET;
addrServer.sin_port = htons(6000);//绑定端口6000
bind(sockServer, (SOCKADDR*)&addrServer, sizeof(SOCKADDR));
//Listen监听端
listen(sockServer, 5);//5为等待连接数目
printf("服务器已启动:\n监听中...\n");
int len = sizeof(SOCKADDR);
char sendBuf[100]="BYE";//发送至客户端的字符串
char recvBuf[100];//接受客户端返回的字符串
//会阻塞进程,直到有客户端连接上来为止
sockClient = accept(sockServer, (SOCKADDR*)&addrClient, &len);
//接收并打印客户端数据
recv(sockClient, recvBuf, 100, 0);
printf("%s\n", recvBuf);
send(sockServer, sendBuf, 100, 0);
//关闭socket
closesocket(sockClient);
WSACleanup();
_getch();
return 0;
}
客户端
#include<winsock2.h>
#include<stdio.h>
#include<conio.h>
#pragma comment(lib, "ws2_32.lib")
int main()
{
WSADATA wsaData;
SOCKET sockClient;//客户端Socket
SOCKADDR_IN addrServer;//服务端地址
WSAStartup(MAKEWORD(2, 2), &wsaData);
//新建客户端socket
sockClient = socket(AF_INET, SOCK_STREAM, 0);
//定义要连接的服务端地址
addrServer.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");//目标IP(127.0.0.1是回送地址)
addrServer.sin_family = AF_INET;
addrServer.sin_port = htons(6000);//连接端口6000
//连接到服务端
connect(sockClient, (SOCKADDR*)&addrServer, sizeof(SOCKADDR));
//发送数据
char message[20] = "HelloSocket!";
char lzfwq[20];
send(sockClient, message, strlen(message) + 1, 0);
SOCKET sockServer;
int len = sizeof(SOCKADDR);
sockServer = accept(sockClient, (SOCKADDR*)&addrServer, &len);
recv(sockServer, lzfwq, 100, 0);
printf("%s", lzfwq);
//关闭socket
closesocket(sockClient);
WSACleanup();
getch();
return 0;
}