急求啊，给跪了Orz~

/* thread.c*/
#include <stdio.h>
#include <pthread.h>
void thread(void)
{
int i;
for(i=0;i<3;i++)
printf("This is a pthread.\n");
}
int main(int argc,char *argv[])
{
pthread_t id;
int i,ret;
ret=pthread_create(&id,NULL,(void *) thread,NULL);
if(ret!=0){
printf ("Create pthread error!\n");
exit (1);
}
for(i=0;i<3;i++)
printf("This is the main process.\n");
pthread_join(id,NULL);
return (0);
}

请问我编译之后：$gcc thread.c -lpthread -o thread
按理来说结果应该是：
得到如下结果：
This is the main process.
This is a pthread.
This is the main process.
This is the main process.
This is a pthread.
This is a pthread.
　　再次运行，可能得到如下结果：
This is a pthread.
This is the main process.
This is a pthread.
This is the main process.
This is a pthread.
This is the main process.
每次应该是不一样的，可是我每次都是一样的
This is a pthread.
This is a pthread.
This is a pthread.
This is the main process.
This is the main process.
This is the main process.
每次都是这一个结果，请问这是怎么回事？


如何在本程序中再添加一个进程？

路过滚蛋％％％％％％％％

哥，我知道了，你不会是每次都运行的是第一次gcc编译出的thread文件吧？

留个手印

多线程吗？简单啊，分配好时间，位置，...
按次序循环来，和lun*jian没区别

碉堡了 哈哈哈