¿¼²éǶÈëʽC¿ª·¢ÈËÔ±×îºÃµÄÊ®µÀÌâ²Î¿¼´ð°¸
Ïêϸ²Î¿¼´ð°¸
µÚ1Ìâ: (b)
volatile×ÖÃæÒâ˼ÊÇÒ×ÓÚ»Ó·¢µÄ¡£Õâ¸ö¹Ø¼ü×ÖÀ´ÃèÊöÒ»¸ö±äÁ¿Ê±£¬Òâζ×Å ¸ø¸Ã±äÁ¿¸³Öµ(дÈë)Ö®ºó£¬ÂíÉÏÔÙ¶ÁÈ¡£¬Ð´ÈëµÄÖµÓë¶ÁÈ¡µÄÖµ¿ÉÄܲ»Ò»Ñù,ËùÒÔ˵Ëü"ÈÝÒ×»Ó·¢"µÄ¡£
ÕâÊÇÒòΪÕâ¸ö±äÁ¿¿ÉÄÜÒ»¸ö¼Ä´æÆ÷£¬Ö±½ÓÓëÍⲿÉ豸ÏàÁ¬£¬ÄãдÈëÖ®ºó£¬¸Ã¼Ä´æÆ÷Ò²ÓпÉÄܱ»ÍⲿÉ豸µÄд²Ù×÷Ëù¸Ä±ä;»òÕߣ¬¸Ã±äÁ¿±»Ò»¸öÖжϳÌÐò£¬»òÁíÒ»¸ö½ø³Ì
¸Ä±äÁË.
volatile ²»»á±»±àÒëÆ÷ÓÅ»¯Ó°Ï죬ÔÚlongjump ºó,ËüµÄÖµ ÊǺóÃæ¼Ù¶¨µÄ±äÁ¿Öµ,b×îºóµÄÖµÊÇ5,ËùÒÔ5±»´òÓ¡³öÀ´.
setjmp : ÉèÖ÷Ǿֲ¿Ìø×ª /* setjmp.h*/
Stores context information such as register values so that the lomgjmp function can return control to the statement following the one calling setjmp.Returns 0 when it is initially called.
Lonjjmp: Ö´ÐÐÒ»¸ö·Ç¾Ö²¿Ìø×ª /* setjmp.h*/
Transfers control to the statement where the call to setjmp (which initialized buf) was made. Execution continues at this point as if longjmp cannot return the value 0.A nonvolatile automatic variable might be changed by a call to longjmp.When you use setjmp and longjmp, the only automatic variables guaranteed to remain valid are those declared volatile.
Note: Test program without volatile qualifier (result may very)
¸üÏêϸ½éÉÜ£¬Çë²ÎÔÄ CÓïÑÔµÄsetjmpºÍlongjmp
µÚ2Ìâ: (a)
½á¹¹ÌâµÄ³ÉÔ±ÔÚÄÚ´æÖеĵØÖ·Êǰ´ÕÕËûÃǶ¨ÒåµÄλÖÃ˳ÐòÒÀ´ÎÔö³¤µÄ¡£Èç¹ûÒ»¸ö½á¹¹ÌåµÄÖ¸Õë±»¿´³É ËüµÄµÚÒ»¸ö³ÉÔ±µÄÖ¸Õë,ÄÇô¸ÃÖ¸ÕëµÄÈ·Ö¸ÏòµÚÒ»¸ö³ÉÔ±
µÚ3Ìâ: (a)
´ËÌâÄ¿½ÏÄÑ.
Õâ¸ö³ÌÐòµÄ·ÇµÝ¹é°æ±¾
int what ( int x , int n)
{
int val;
int product;
product =1;
val =x;
while(n>0)
{
if (n%2 == 1)
product = product*val; /*Èç¹ûÊÇÆæÊý´ÎÃÝ, x(val)ÒªÏȳËÉÏÒ»´Î,; żÊý´ÎÃÝ,×îºó·µ»ØÊ±²Å»áµ½ÕâÀï³ËÒÔ1*/
val = val* val;
n = n/2;
}
return product;
}/* ÓöþÔª¸´³Ë²ßÂÔ */
Ëã·¨ÃèÊö
(while n>0)
{
if next most significant binary digit of n( power)&n
Ïà¹ØÎĵµ£º
Boss˵£¬Òª¿´OpenGL£¬¿´ÁË¿ìÒ»¸öÔ£¬×ÜËã³öÁ˸öÏñÑùµÄ¶«Î÷£¬ÓÃCдÁ˸ö3DÃÔ¹¬£¬
ËäȻֻÓÐ350ÐÐ
´úÂ룬²»¹ý±ßѧ±ßд£¬×ã×ãдÁËÒ»ÖÜʱ¼ä£¬»¹ÊÇСÓгɾ͸е쬻î»î»î£¡
&n ......
µÚһƪÎÄÕÂÖÕÓÚÂä±ÊÁË£¬±¾ÎĽ«´Ó˼¿¼µÄ½Ç¶ÈÈ¥ÖØÐÂÈÏʶһÏÂHelloworld¡£ÔÚÀý×ÓÖ®ºó»áÌá³ö²»Í¬µÄÎÊÌ⣬Òýµ¼´ó¼Òȥ˼¿¼Ã¿Ò»¾äÄËÖÁÿ¸öϸ½Ú¡£Í¬Ê±Ï£ÍûÄܹ»Èôó¼ÒÒÔºóÄܹ»ÒÔ²»¶Ï˼¿¼²»¶ÏÌáÎʵķ½Ê½È¥¿´´ý×Ô¼ºµÄ³ÌÐò¡£ÎÒÏàÐÅ´ó¼Ò»á·¢ÏֺܶàÐµĶ«Î÷£¬ºÃÁËÇÐÈëÕýÌâ¡£
ÎÒÃÇÿѧһÖÖеÄÓïÑÔ»ù±¾¶¼»á´Óhelloworld¿ªÊ¼£¬»ù±¾Ã¿ÖÖÓïÑÔ ......
×î½ü¼¸ÌìÏÐÀ´ÎÞÊ£¬±ã³¢ÊÔÁËÒ»ÏÂÓÃC²Ù×÷Êý¾Ý¿â£¬ÏÂÃæ±ãÊÇÎÒ²âÊԵľßÌå½á¹û£º
¿ª·¢»·¾³ÊÇwindows 7 ultimate(Ó¢Îİæ) IDE ÊÇvs 2008 professional ÖÐÎİæ,Êý¾Ý¿âÊÇmysql 5.1
Ê×ÏÈ£¬ÎÒÔÚMySQL¿âÖд´½¨ÁËÒ»¸ötest±í£º
CREATE TABLE `test` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(20) NOT ......
ϰ¹ßÓÃRAD7,ËùÒÔÓÃÆðÀ´eclipse for C ûÓÐÎÊÌâ¡£
ÏÂÔØeclipse3.5:
°²×°£ºmingw£¨Èç¹ûÓÃC++, ¾ÍҪѡÉÏg++£©
°²×°£ºmsys
°²×°ºó£¬ÒªÉèÖÃһϻ·¾³±äÁ¿£º
ÔÚpathÀïÃæ¼ÓÈëmingwºÍmsysµÄbinĿ¼·¾¶¡£È磺c:\mingw\bin;c:\msys\bin
´ò¿ªeclipseн¨Ò»¸öc project!
È»ºó¾Í¿ÉÒÔÓÃÁË,ÒòΪËüÒѾ°ïÄãÕÒµ½ÁËGCC make ÁË¡£ ......
ǰһƪÎÒÃǽéÉÜÁËÒ»¸ö¼òµ¥²»¹ýµÄhelloworld³ÌÐòÒý³öÏà¹ØÎÊÌâ¡£³Ã×Å»¹Ã»ÓÐÍüµôÄÇЩ˼¿¼·½Ê½µÄ¼ÇÒ䣬±¾Æª¼ÌÐøÑÓÐøÕâÖÖ˼ά·½Ê½µÄÀíÄ½éÉÜÒ»ÏÂCC++ÖеĻù±¾Êý¾ÝÀàÐÍ¡£Êý¾ÝÀàÐͲ»Çå³þµÄ»°ÔÚÒÔºóµÄ±à³ÌÖлáÓкܶàÃÕÍźÍÎÊÌâ¡£ÉõÖÁÒ»¸ö³ÌÐòµÄBUGÕÒ°ëÌìҲûÓÐÕÒ³öÀ´Ê±ÎªÊ²Ã´£¬½á¹û²Å·¢ÏÖÊǼӼõÒç³öÁË¡£¸ü¼ÓÑÏÖØµÄ»¹ÓÐдԽ½ç¡¢¶ÁÔ ......