#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?

int?main（）
{
????int?ret;
????int?s?nbytes;
????struct?sockaddr_can?addr;
????struct?ifreq?ifr;
????struct?can_frame?frame;
????memset（&frame?0?sizeof（struct?can_frame））;

????system（“sudo?ip?link?set?can0?type?can?bitrate?100000“）;
????system（“sudo?ifconfig?can0?up“）;
????printf（“this?is?a?can?send?demo\r\n“）;

????//1.Create?socket?<創建接口>
????s?=?socket（PF_CAN?SOCK_RAW?CAN_RAW）;
????if?（s?????????perror（“socket?PF_CAN?failed“）;
????????return?1;
????}

????//2.Specify?can0?device?<指定can0設備>
????strcpy（ifr.ifr_name?“can0“）;
????ret?=?ioctl（s?SIOCGIFINDEX?&ifr）;
????if?（ret?????????perror（“ioctl?failed“）;
????????return?1;
????}

????//3.Bind?the?socket?to?can0?<將接口綁定到can0>
????addr.can_family?=?AF_CAN;
????addr.can_ifindex?=?ifr.i