多进程
#include
#include
int main(){
pid_t pid;
int result;
pid = fork();
if(pid <0)
{
}
else if (pid == 0)
{//子进程
char my_cmd3[]="./gh > lll";
system(my_cmd3);
}
else
{//父进程
}
}编译
gcc -o testj testj.c
多线程
#include
#include
void thread(void)
{
int i;
char my_cmd3[]="./gh >> lll";
system(my_cmd3);
}
int main(void)
{
pthread_t id;
int i,ret,j;
for(j=0;j<3;j++)
{
ret=pthread_create(&id,NULL,(void *) thread,NULL);
if(ret!=0)
{
printf ("Create pthread error!\n");
return 1;
}
pthread_join(id,NULL);
}
printf("This is the main process.\n");
return 0;
}
