#include <winsock.h>
#pragma comment(lib,"ws2_32.lib")
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <malloc.h>
#include <stdarg.h>

 int main()
{
     int c,d,e,f,g,k,n,z,i,p,q;
     char s[1000];
     
     WORD wVersionRequested;
     WSADATA wsaData;
     wVersionRequested = MAKEWORD( 1, 1 );
     SOCKET a,b;
     g = WSAStartup( wVersionRequested, &wsaData );
     if ( g != 0 ) {
     /* Tell the user that we couldn't find a useable */
     /* winsock.dll. */
     return(0);
     }
     
     struct sockaddr_in remote_addr,my_addr;
     
     a=socket(AF_INET,SOCK_STREAM,0);//调用Socket函数//
     
     if(a==-1)
     {
        printf("创建SOCKET失败,错误码 %d",GetLastError());
     }
     memset(&remote_addr,0,sizeof(remote_addr));
     remote_addr.sin_family=AF_INET;//远程主机使用协议//
     remote_addr.sin_port=htons(888);//远程主机端口//
     remote_addr.sin_addr.S_un.S_addr = inet_addr("172.17.36.25");//远程主机IP//
     
     printf("客户端已启动!\n");
     
     
     
     printf("正在连接...\n");
     
      c=connect(a,(struct sockaddr*)&remote_addr,sizeof(remote_addr));//向服务器发出连接请求//
     
     if(c==-1)
     {
       printf("连接失败! %d\n",GetLastError());
       exit(1);
     }
     else
     {
         printf("连接成功!\n");
     }
     while(c!=-1)//循环发送接收//
     {
         
         recv(a,s,sizeof(s),0);//接收客户断发送的数据，并显示//
        
         printf("他说: %s\n\n",s);
         
         
         printf("我说:" "");
         scanf("%s",&s);
         printf("发送中..\t");
        
         q=send(a,s,sizeof(s),0);//发送信息//
         if(q!=-1)
         {
         printf("发送成功!\n\n");
         }
         else
         {
             printf("发送失败!\n");
             return(0);
         }
     }
     closesocket(a);//关闭socket//
     WSACleanup();//释放占用资源//
     
 }
#include <winsock.h>
#pragma comment(lib,"ws2_32.lib")
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <malloc.h>
#include <stdarg.h>

 int main()
{
   
 
     WORD wVersionRequested;
     WSADATA wsaData;
     wVersionRequested = MAKEWORD( 1, 1 );
     
     int err;
     err = WSAStartup( wVersionRequested, &wsaData );
     if ( err != 0 ) {
     /* Tell the user that we couldn't find a useable */
     /* winsock.dll. */
     return(0);
 }
       int c,d,e,g,i,n,q,z,k,p;
       SOCKET a,b;
 char s[1000];
 
 struct sockaddr_in my_addr;
 
         n=strlen(s);
 
 
 struct sockaddr_in remote_addr;
 
 a=socket(AF_INET,SOCK_STREAM,0);//调用Socket函数//
 
     


     
     

if(a==-1)
{
printf("创建SOCKET失败",NULL,MB_OK);
}
memset(&my_addr,0,sizeof(my_addr));
my_addr.sin_family=AF_INET;//本地主机使用协议//
my_addr.sin_port=htons(888);//本地主机端口//
my_addr.sin_addr.S_un.S_addr =  INADDR_ANY;//本机IP//


if(bind(a,( struct sockaddr*)&my_addr,sizeof(my_addr))==-1)
{
    printf("bind错误! 错误码%d\n",GetLastError());
 return(0);
}

     c=listen(a,10);//调用listen()函数监听端口//
 if(c==-1)
 {
 printf("端口监听失败! 错误码%d\n",GetLastError());//出错提示//
 return(0);
 }
 else
 {
 printf("服务器已启动!\n");
 }
  
     d=sizeof(remote_addr);
 

     printf("等待连接...\n");
     b=accept(a,(struct sockaddr*)&remote_addr,&d);//accept()函数，用于接受客户端的连接请求//
     if(b!=-1)
 {
      printf("已连接上!\n");
 }
     while(b!=-1)
 {
         printf("我说: " "");
 scanf("%s",&s);//输入数据，并发送//
 printf("发送中...\t");
 p=send(b,s,sizeof(s),0);
 if(p!=-1)
 {
 printf("发送成功!\n\n");
 }
 else
 {
 printf("发送失败!\n");
 return(0);
 }
 recv(b,s,sizeof(s),0);//发送完毕，准执行此函数准备接收数据//
         printf("他说:" "%s\n\n",s);//显示收到的数据//
 
 }
  
 
 WSACleanup();//释放资源//
     closesocket(a);//关闭socket//
 closesocket(b);//关闭socket1//

 
 }