进程学习-子线程

#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
void thread(void)
{
printf("This is a pthread.
");
sleep(10);
}
int main(void)
{
pthread_t id[100];
int i,ret;
for(i=0;i<100;i++){
ret=pthread_create(&id[i],NULL,(void *) thread,NULL);
if(ret!=0){
printf ("Create pthread error!
");
exit (1);
}
}
printf("This is the main process.
");
for(i=0;i<100;i++){
pthread_join(id[i],NULL);
}
return (0);
}