#include<stdio.h>
#include<stdlib.h>
#include<assert.h>
#include<string.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<arpa/inet.h>
#include<netinet/in.h>
 //20201311
int main()
{
 int sockfd = socket(PF_INET,SOCK_STREAM,0);
 assert(-1!=sockfd);
 
 struct sockaddr_in ser,cli;
 memset(&ser,0,sizeof(ser));
 ser.sin_family=AF_INET;
 ser.sin_port=htons(6000);
 ser.sin_addr.s_addr=inet_addr("127.0.0.1");
 int res=connect(sockfd,(struct sockaddr*)&ser,sizeof(ser));
 assert(res!=-1);
 
 while(1)
 {
  printf("Please input:");
  fflush(stdout);
  char buff[128]={0};
  fgets(buff,127,stdin);
  buff[strlen(buff)-1]=0;
 
  if(strncmp(buff,"end",3)==0)
  {
      break;
  }
  send(sockfd,buff,strlen(buff),0);
 
  memset(buff,0,sizeof(buff));
  recv(sockfd,buff,127,0);
  printf("%s\n",buff);
 }
 close(sockfd);
}