***********我又来求指点了*********

#include<stdio.h>

#include<unistd.h>

#include<stdlib.h>

#include<errno.h>

#include<sys/types.h>



int main(int argc, char* argv[])

{

	  

    int i = 0;

    

    pid_t pid = -1;

    

    fprintf(stdout, "parent pid[%d], i[%d]\n", getpid(), i);

    

    if((pid = vfork()) < 0)

    {

        fprintf(stderr, "fork failed!!  errorno = %d\n", errno);

        return 0;

    }

    else if(pid > 0)

    {

        fprintf(stdout, "after fork, parent pid[%d], i[%d]\n", getpid(), i);

    }

    else

    {

        system("find . -type f");

    }

    

    

    fprintf(stdout, "process end. pid[%d], i[%d]\n", getpid(), i);

    

    return 0;

}

parent pid[20000], i[0]

./core.17552

./libshow.a

./dup2.c

./csdn.c

./main

./base/baseMath.o

./base/baseMath.c

./base/libbaseMath.a

./base/libbaseMath.so

./base/baseMath.h

./test.cpp

./stat.c

./power.c

./tag.c

./libshow.so

./unlink

./unlink.c

./book.c

./show.o

./a.bat

./show.c

./reservword.c

./fileop.c

./code.c

process end. pid[20001], i[0]

after fork, parent pid[20000], i[0]

process end. pid[20000], i[0]

Segmentation fault (core dumped)