linux c±à³ÌÎÊÌâ
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
int main()
{
pid_t result;
result=fork();
int newret;
if(result==-1){
perror("´´ÐÂ×Ó½ø³Ìʧ°Ü");
exit(0);
}
else if(result==0){
printf("·µ»ØÖµÊÇ:%d,ÕâÊÇ×Ó½ø³Ì%d\n",result,getpid());
newret=system("ls -l");
}
else{
sleep(10);
printf("·µ»ØÖµÊÇ:%d,ÕâÊǸ¸½ø³Ì%d\n",result,getpid());
newret=system("ping www.abc.com");
}
}
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#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
int main()
{
pid_t result;
result=fork();
if(result==-1){
perror("error");
exit(0);
}
else if(result==0){
printf("²âÊÔÖÕÖ¹½ø³ÌµÄ_exitº¯Êý!\n");
printf("ĿǰΪ×Ó½ø³Ì,ÕâÒ»ÐÐÎÒÃÇÓûº´æ!");
_exit(0);
}
else{
printf("²âÊÔÖÕÖ¹½ø³ÌµÄexitº¯Êý!\n");
printf("ĿǰΪ¸¸½ø³Ì,ÕâÒ»ÐÐÎÒÃÇÓûº´æ!");
exit(0);
}
}
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struct hostent *hp;
char AlarmDevIP[20];
int x2;
hp = gethostbyname("www.google.com");
if (hp)
{
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