#include <unistd.h>
#include <stdio.h>
 
int main ()
{
    pid_t fpid; //fpid表示fork函数返回的值
    int count = 0;
    fpid = fork();
    if (fpid < 0)
        printf("error in fork!");
    else if (fpid == 0)
    {
        printf("i am the child process, my process id is %d/n", getpid());
        printf("我是爹的儿子/n");//对某些人来说中文看着更直白。
        count++;
    }
    else
    {
        printf("i am the parent process, my process id is %d/n", getpid());
        printf("我是孩子他爹/n");
        count++;
    }
    printf("统计结果是: %d/n", count);
    return 0;
}