linux 线程相关

编译加上参数

gcc -lpthread

--------------1.1第一个线程---

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>

int * thread(void *arg)
{
        printf("thread id is %d.\n",pthread_self());
        return NULL;
}

int main()
{
    pthread_t id;
    printf("Main thread id is %d \n",pthread_self());
    if(!pthread_create(&id,NULL,(void *)thread,NULL))
    {
       printf("succeed!\n");
       return 0;
    }
    else
    {
       printf("Fail to Create Thread");
       return -1;
    }

-----------1.1 end ------