1. 机械臂

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <myhead.h>#define CLI_PORT 6667 				//本机的端口号
#define CLI_IP "192.168.125.79"	//本机的IP#define SER_PORT 8888 				//服务器的端口号
#define SER_IP "192.168.125.202"		//服务器的IPint main(int argc, const char *argv[])
{//创建套接字，用于通信int cfd=socket(AF_INET,SOCK_STREAM,0);if(cfd<0){perror("socket error");return -1;}int reuse = 1;if(setsockopt(cfd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse)) == -1){perror("setsockopt error");return -1;}//绑定IP地址和端口号struct sockaddr_in cinfo;cinfo.sin_family=AF_INET;cinfo.sin_port=htons(CLI_PORT);cinfo.sin_addr.s_addr=inet_addr(CLI_IP);if(bind(cfd,(struct sockaddr*)&cinfo,sizeof(cinfo))<0){perror("bind error");return -1;}//连接到服务器struct sockaddr_in sinfo;sinfo.sin_family=AF_INET;sinfo.sin_port=htons(SER_PORT);sinfo.sin_addr.s_addr=inet_addr(SER_IP);if(connect(cfd,(struct sockaddr*)&sinfo,sizeof(sinfo))<0){perror("connect error");return -1;}printf("connect success \n");//发送信息char str[5]={0xff,0x02,0x00,0x00,0xff};char c;char blue=0x00;char red=0x00;send(cfd,str,sizeof(str),0);while(1){printf("please input a/w/s/d\n");scanf("%c",&c);getchar();switch(c){case 'a' :case 'A' :str[2]=0x01;blue-=0x01;str[3]=blue;break;case 'd' :case 'D' :str[2]=0x01;blue+=0x01;str[3]=blue;break;case 's' :case 'S' :str[2]=0x00;red-=0x01;str[3]=red;break;case 'w' :case 'W' :str[2]=0x00;red+=0x01;str[3]=red;break;default: break;}ssize_t res=send(cfd,str,sizeof(str),0);if(res<0){perror("while error");return -1;}if(res==0){printf("serve off\n");break;}}//关闭套接字close(cfd);return 0;
}

本地不知道为啥，连接不上，防火墙的问题