使用自定义信号

void catch_Signal(int Sign)
{
    switch (Sign)
    {
    case SIGINT:
        printf("SIGINT Signal\n");
        exit(0);
    case SIGUSR1:
        printf("SIGUSR1 Signal\n");
    }
}
int main(int arg, char *args[])
{
    signal(SIGINT, catch_Signal);
    signal(SIGUSR1, catch_Signal);
    printf("pid = %d\n", getpid());
    while(1)
    {
        sleep(1);
    }
    return 0;
}