linuxÏÂcÓïÑԹػú³ÌÐò
/* Offtimer.c.For auto halt. */
#include <time.h>
#include <stdlib.h>
#include <unistd.h>
#define DELAY 60/* Time of sleeping */
int main()
{
time_t now;
struct tm *p;
while(1)
{
now = time(NULL);
sleep(DELAY);/* To reduce cpu occupation */
p = localtime(&now);
if ((p->tm_hour = 14) && (p->tm_min >= 30))/ *This means the system will halt after 14:30 or 14:31 */
system("poweroff"); / *'poweroff' is the command in Red Flag Linux
Desktop 5.0 to turn off the computer.To do this you should be root. */
}
return 0;
}
ÒýÓÃgcc±àÒ룬ÁíÍâÐèÒªÓÐrootÓû§µÄȨÀû²ÅÄÜÐС£
Ïà¹ØÎĵµ£º
Service Discovery Protocol(SDP)ÌṩһÖÖÄÜÁ¦£¬ÈÃÓ¦ÓóÌÐòÓз½·¨·¢ÏÖÄÄÖÖ·þÎñ¿ÉÓÃÒÔ¼°ÕâÖÖ·þÎñµÄÌØÐÔ¡£
·þÎñ·¢ÏÖÐÒé(SDP»òBluetooth SDP)ÔÚÀ¶ÑÀÐÒéÕ»ÖжÔÀ¶ÑÀ»·¾³ÖеÄÓ¦ÓóÌÐòÓÐÌØÊâµÄº¬Ò⣬·¢ÏÖÄĸö·þÎñÊÇ¿ÉÓõĺÍÈ·¶¨ÕâЩ¿ÉÓ÷þÎñµÄÌØÕ÷¡£SDP¶¨ÒåÁËbluetooth client·¢ÏÖ¿ÉÓÃbluetooth server·þÎñºÍËüÃǵÄÌØÕ÷µÄ·½·¨¡£ ......
4.1. Introduction to Linux Routing
The design of IP routing allows for very simple route definitions for small networks, while not hindering the flexibility of routing in complex environments. A key concept in IP routing is the ability to define what addresses are locally reachable as oppose ......
Ê®ÔÂÄ©ubuntu9.10·¢²¼£¬Á¢¿Ì»»ÉÏÁËеģ¬ÎÒÏë×Ô¼º²¢²»ÊÇÔÚ¿ÌÒâ×·Çóеİ汾¡£Ö»ÊÇÒÔǰÔÚµçÄÔÉÏÓÃwubi×°µÄÄǸöylmfµÄÊÇÔÚ²»ºÃ
Óã¬firfoxÖ»ÄÜÊÇ3.0°æ±¾µÄ£¬×ÔÐбàÒëÈí¼þ»¹²»»á£¬ÓÃwine×°Ò»¸öie¾ÓÈ»Óõ½µçÄÔËÀ»ú£¬ÊÇÔڸоõ²»µ½linuxÓÐʲôºÃµÄ£¬¸üÈÃÈËÄÑÊܵÄÊÇ×Ö
ÌåÏÔʾЧ¹û²î£¬firfox
operaʹÓÃÒ»»ÎÒ»»ÎµÄ£¬ËÙ¶ÈÌ«Âý£¬Õû¸ ......
C£¬C++ÍøÂç±à³Ìѧϰ¼òÃ÷Ö¸ÄÏ
1. ÔúʵµÄC£¬C++»ù´¡ÖªÊ¶
²Î¿¼×ÊÁÏ¡¶C³ÌÐòÉè¼Æ¡·£¬¡¶C++ primer¡·¡£
2. TCP/IPÐÒé
¾µäÊéÊÇ£ºW.Richard Stevens Öø¡¶TCP/IPÏê½â¡·Èý¾íÊ飬¾í1ÊÇÐÒ飬¾í2ÊÇʵÏÖ£¬¾í3ÊÇTCPÊÂÎñÐÒéµÈ¡£»¹Óйٷ½µÄÐÒéÎĵµ£ºRFC
µ±È»Ò²¿ÉÒÔÔÚÍøÉÏÏÂÔØµç×ÓÊé¡£
¾µäµÄ¿ªÔ´ÐÒé·ÖÎö¹¤¾ß£ºWireshark.
......