#include<stdio.h>
#include<pthread.h>
void mythread(void)
{
	int i;
	for(i=0;i<20;i++)
	  printf("This is a thread!\n");
	}
int main(void)
{
	pthread_t id;
	int i,ret;
	ret=pthread_create(&id,NULL,(void *)mythread,NULL);
	if(ret!=0)
	{
		printf("create pthread error!\n");
		exit(1);
		}
	for(i=0;i<20;i++)
	  printf("This is the main process1\n");	
	  pthread_join(id,NULL);
	  return(0);
	}