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 ÔÚlinuxÖÐ,ÔËÐеÄÒ»¸ö½ø³Ì,»áռȥlinuxµÄÈý¸öµØ·½,´úÂëÇø,¶ÑÕ»ÇøºÍÊý¾ÝÇø.Èç¹ûͬʱÔËÐжà¸öÏàͬµÄ³ÌÐò,ËûÃǾͻáʹÓÃÏàͬµÄ´úÂëÇø,´úÂëÇøÖдæ·ÅµÄ¾Í³ÌÐòµÄ´úÂë,µ«ÊÇÊý¾ÝÇøºÍ¶ÑÕ»Çø·Ö±ð´æ·ÅµÄÊdzÌÐòµÄÊý¾Ý,È«¾Ö±äÁ¿ºÍ¾Ö²¿±äÁ¿,Òò´Ë¼´Ê¹ÊÇÏàͬµÄ³ÌÐò,Ò²²»¿ÉͬʱʹÓÃÏàͬµÄÊý¾ÝºÍ¶ÑÕ»Çø.
#include<stdio.h>
#include<unistd.h>
int main()
{
     if(fork() == 0)
     {
          printf("First.\n");
          if(fork() == 0)
          {
               printf("Second.\n");
          }
          else
          {
               printf("Third.\n");
           }
     }
     else
     {
          printf("Fourth.\n");
          if(fork() == 0)
          {
               printf("Fivth.\n");
           }
           else
           {
               printf("Sixth.\n");
            }
      }
}
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ʵսLinux Bluetooth±à³Ì(Áù) L2CAP±à³ÌʵÀý

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Signaling CommandÊÇ2¸öBluetoothʵÌåÖ®¼äµÄL2CAP²ãÃüÁî´«Êä¡£ËùÒÔµÃSignaling CommandʹÓÃCID 0x0001.
¶à¸öCommand¿ÉÒÔÔÚÒ»¸öC-frame£¨control frame£©Öз¢ËÍ¡£
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2006 Äê 8 Ô·¢²¼
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 ~ µ±Ç°Óû§Ä¿Â¼µÄËõд
 cd ~
 cd /home/<user-name>/
--help »ñÈ¡°ïÖú
 vi --help
tab ×Ô¶¯²¹È«¡£Ë«»÷tab¸ø³ö²¹È«Ìáʾ¡£
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