for(int i=0;i<5;i++)
{
     pthread_create();    //这行代码该怎么写才能在循环结束之后创建了5个线程？
}

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

void *ping_pthead(void* arg)
{
   while(1)
   {
     int id = arg;
     printf("arg = %d, ping\n", id);
     sleep(2);
   }
}

int main(int argc, char** argv)
{
  pthread_t pid[5];
  int i = 0;
  for (i = 0; i < 5; i++) {
    pthread_create(&pid[i], NULL, ping_pthead, (void*)i);
    sleep(1);
    printf("i=%d\n", i);
  }

  printf("............\n");

  for (i = 0; i < 5; i++) {
    pthread_join(pid[i], NULL);
  }



  return 0;
}