僵尸进程

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


int main()
{
    /*fork一个子进程*/
    pid_t pid = fork();
    if(pid>0){
        printf("in parent process,sleep for one miniute...zZ...
");
        sleep(3);
        printf("after sleeping, and exit!
");
    }
    else if(pid == 0){
        /*子进程退出，成为一个僵尸进程*/
        printf("in child rocess,and exit!
");
        exit(0);
    }
    return 0;
}