线程的创建：
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <pthread.h>
struct member
{
int a;
char *s;
};
void *create(void *arg)
{
struct member *temp;
temp=(struct member *)arg;
printf("member->a=%d \n",temp->a);
printf("member->s=%s \n",temp->s);
//exit(0);/*进程中任何一个线程调用exit或_exit,那么整个进程都会终止*/
return (void*)0;
}
int main(int argc,char**argv)
{
pthread_t tidp;
int error;
struct member*b;
/*为结构体指针b分配内存并赋值*/
b=(struct member*)malloc(sizeof(struct member));
b->a=4;
b->s="hello";
/*创建线程并运行线程执行程序*/
error=pthread_create(&tidp,NULL,create,(void*)b);//create函数里的参数必须为，void * (*)(void *)，故将b转化为 void*
if(error)
{
printf("pthread is not created..\n");
}
sleep(1);
printf("pthread is created...\n");
return 0;
}