#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include<time.h>
#include<stdlib.h>
#define INPUTLEN 100
int main(int argc, char *argv[])
{
void inthandler(int);
void quithandler(int);
char input[INPUTLEN];
int nchars;
signal(SIGINT, inthandler);//^C
signal(SIGQUIT, quithandler);//^\
do {
nchars = read(0, input, (INPUTLEN - 1));
if (nchars == -1)
perror("read returned an error");
}
while (strncmp(input, "quit", 4) != 0);
return 0;
}
void inthandler(int s)
{
int a;
int flag;
srand((unsigned int)time(NULL));
if((a=rand()*2+1)>0)
{
printf("奇数随机数为:%d\n",a);
}
else{
printf("奇数随机数为:%d\n",-a);
}
}
void quithandler(int s)
{
int b;
srand((unsigned int)time(NULL));
if((b=rand()*2)>0)
{
printf("偶数随机数为:%d\n",b);
}
else{
printf("偶数随机数为:%d\n",-b);
}
}