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¾µäÖ®×÷ - ÓÃÐǼʽâ˵PHPÃæÏò¶ÔÏó±à³Ì
Submitted by ×÷Õß: admin
2008-06-25 12:15:27
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class marine
{
public $blood = 50; //Ê£ÓàµÄѪ
public $kills = 0; //ɱµÐÊýÁ¿
//Õâ¸öº¯Êý£¨Í¨³£½Ð×ö·½·¨£©±íʾ¹¥»÷µÐÈËʱºòµÄÔËÐдúÂë
function attack($enemy)
{
//¹¥»÷µÐÈ˵ĴúÂë
}
}
Õâ½Ð×öÀ࣬ÎÒÃǽ¨Á¢ÁËÒ»¸ö±íʾËùÓлúǹ±øµÄÀàmarine£¬ÕâÀïÃæ±£ÁôÁËÐèҪÿ¸ö±ø¶ÀÓеÄÊý¾Ý£¬±ÈÈçÉÏÃæ´úÂëÀïµÄÊ£ÓàµÄѪ¡£
1.2¡¢¶ÔÏóµÄ´´½¨ºÍʹÓÃ
½ÓÏÂÀ´ÎÒÃÇÀ´Ê¹ÓöÔÏó£¬Ò²¾ÍÊÇÿ¸ö»úǹ±ø£º
$m1 = new marine();
ͨ¹ýnewºóÃæ¼ÓÒ»¸öÀàµÄÃû×ÖºÍÀ¨ºÅ£¬ÎÒÃÇн¨ÁËÒ»¸ö»úǹ±ø$m1£¬$m1±»½Ð×öÀàmarineµÄ¶ÔÏó£¬ÎÒÃÇ¿ÉÒÔ°ÑËüÏëÏó³ÉÒ»¸öÌØÊâ±äÁ¿£¬Ö»²»¹ýÀïÃæ±£´æÁ˶à¸öÊý¾Ý¡£
Èç¹ûÐèҪʹÓûòÕß²Ù×÷ij¸ö»úǹ±øµÄѪ£¨¶ÔÏóµÄÊôÐÔ£©£¬Ö»ÒªÓÃ$m1->bloodÀ´±íʾ¾Í¿ÉÒÔÁË£º
echo $m1->blood;//Êä³ö»úǹ±ø$m1Ê£ÓàµÄѪ
ÎÒÃÇÔÙ½¨Á¢Ò»¸ö»úǹ±ø
$m2 = new marine();
Èç¹û´Ëʱ$m1±»µÐÈ˹¥»÷¹ýÁË£¬»¹Ê£ÏÂ10¸öѪ¡£¶ø$m2ûÊܹý¹¥»÷£º
echo $m1->blood;//½á¹ûÊÇ10
echo $m2->blood;//½á¹ûÊÇ50
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$m1->attack($z1);//¼ÙÉè¹¥»÷µÄÊÇij¸öС¹·µÄ¶ÔÏó$z1
²»Í¬µÄÀàÄÚ¿ÉÒÔÓÃͬÃûµÄº¯Êý£¬±ÈÈçС¹·µÄÀàZerglingÀïÃæÒ²¿ÉÒÔÓÐÒ»¸öº¯Êýattack
ҪעÒâµÄÊÇ£¬´ÓPHP5¿ªÊ¼£¬ÎÞÂÛÔÚÄÄÀï¸Ä±äÒ»¸ö¶ÔÏóµÄÊôÐÔ£¬¶¼ÄܸıäËü¡£±ÈÈçÉÏÃæÒ»¸öС¹·¶ÔÏó±»×÷Ϊ²ÎÊý´«Èë»úǹ±øµÄattackº¯Êý£¬Ö´Ðк¯ÊýÖ®ºóÕâ¸öС¹·¶ÔÏóµÄѪ¼õÉÙÁË£¬ÕâºÍÒ»°ãµÄº¯Êý²»Í¬¡£µ«ÕâÊǺÜÖ±¹ÛµÄ£¬Èç¹ûÒ»¸öС¹·±»¹¥»÷ÁË£¬ËüµÄѪ¾ÍÓ¦¸Ã¼õÉÙ¡£
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¿ÉÒÔͨ¹ý¹¹Ô캯ÊýºÍÎö¹¹º¯ÊýÀ´×Ô¶¯´¦Àí£º
class marine
{
//¹¹Ô캯Êý
function __construct()
{
//Ôö¼Ó×ÜÈ˿ڵĴúÂë
}
//Îö¹¹º¯Êý
function __destruct()
{
//¼õÉÙ×ÜÈ˿ڵĴúÂë
}
}
ÔÚÒ»¸öÀàÖУ¬Ãû×ÖΪ__constructµÄº¯Êý½Ð×ö¹¹Ô캯Êý£¬Ã¿´Înewн¨Ò»¸öÀàµÄ¶ÔÏóµÄʱºò¾Í»áÖ´ÐУº
$m1 = new marine();//ÿ´ÎÖÆÔìÒ»¸ö»úǹ±øÊ±ÏµÍ³»áµ÷ÓÃÀàmarineµÄ¹¹Ô캯Êý£¬×Ô¶¯Ôö¼Ó×ÜÈË¿Ú
ÔÚÒ»¸öÀàÖУ¬Ãû×ÖΪ__destructµÄº¯Êý½Ð×öÎö¹¹º¯Êý£¬Ã¿´ÎÏú»ÙÒ»¸öÀàµÄ¶ÔÏóµÄʱºò¾Í»áÖ´ÐУº
unset($m1);//unset¿ÉÒÔÓÃÓÚ¶ÔÏ󣬱íʾÏú»ÙÒ»¸ö¶ÔÏó¡£Ã¿´ÎÒ»¸ö»úǹ±ø±»É±Ê±ÏµÍ³»áµ÷ÓÃÀàmarineµÄÎö¹¹º¯Êý£¬×Ô¶¯¼õÉÙ×ÜÈË¿Ú
Èý¡¢¾²Ì¬
»úǹ±øµÄ¹¥»÷Á¦ÊÇÊôÓÚËùÓлúǹ±ø¶ÔÏó£¬Ã¿¸ö»úǹ±øµÄ¹¥»÷Á¦¶¼ÊÇÒ»ÑùµÄ£¬Èç¹ûÉý¼¶£¬Ó¦¸ÃÒ»Æð±ä»¯¡£
Õâ¾ÍÓõ½static£¬±íʾ¾²Ì¬£º
class marine
{
static $attackNumber = 10; //¹¥»÷Á¦µÄÊý×Ö
//Õâ¸öº¯Êý±íʾ¹¥»÷µÐÈËʱºòµÄÔËÐдúÂë
function attack($enemy)
{
//¹¥»÷µÐÈ˵ĴúÂ룬$enemy->blood±íʾµÐÈ˶ÔÏóµÄѪÊôÐÔ
$enemy->blood -= self::$attackNumber;
}
}
¾²Ì¬ÊôÐÔ±íʾÀàËùÓеĶÔÏó¶¼¹²ÏíµÄÊôÐÔ£¬Ò»µ©¸Ä±ä£¬ËùÓеĶÔÏ󶼸ú×ű仯¡£
¾²Ì¬ÊôÐÔÓÃstatic¿ªÍ·£¬±ÈÈçÉÏÃæµÄstatic $attackNumber¡£
¾²Ì¬ÊôÐÔ¿ÉÒÔÓÃÀàÖ±½Ó·ÃÎÊ£º
echo marine::$attackNumber;//ÏÔʾ10
Èç¹ûÀàÒÔÄڵĺ¯Êý·ÃÎÊ£¬ÓÃself::$attackNumber±íʾ±¾ÀàµÄ$attackNumberÊôÐÔ
ËùÒÔÈç¹ûÎÒÃÇÉý¼¶ÁË»úǹ±øµÄ¹¥»÷Á¦£¬ËùÓеĻúǹ±ø¶¼ÊÜÓ°Ï죬Õâ¾ÍÊÇÃæÏò¶ÔÏóµÄºÃ´¦Ö®Ò»£¬Ò²½â¾öÁËÎÒÃÇÇ°ÃæÌÖÂ۵Ĺ²Í¬Êý¾ÝµÄÎÊÌâ¡£
º¯ÊýÒ²¿ÉÒÔÊǾ²Ì¬µÄ£¬ÕâÑù¾Í¿ÉÒÔÓÃÀàÖ±½Ó·ÃÎÊ£¬²»ÐèҪн¨¶ÔÏóÀ´µ÷Óãº
class marine
{
static $attackNumber = 10; //¹¥»÷Á¦µÄÊý×Ö
//Õâ¸öº¯Êý±íʾ»úǹ±øÉý¼¶µÄÔËÐдúÂë
static function upgrade()
{
self::$attacknum++;
}
}
Èç¹û¿Æ¼¼½¨ÖþÉý¼¶Íê±Ï£¬Ö±½Ó¾Íµ÷ÓÃÕâ¸öº¯Êý£º
marine::upgrade();
ËÄ¡¢¼Ì³Ð
±øÓªÓÃÀ´Ôì»úǹ±ø£¬Ì¹¿Ë·¿ÓÃÀ´ÖÆÔì̹¿Ë£¬ËûÃǶ¼Êǽ¨Öþ£¬µ«ÊÇÈ´Óкܶ಻ͬ£¬Èç¹ûÓÃÒ»¸öÀà“½¨Öþ”À´±íʾ£¬ºÜÀ§ÄÑ¡£
µ«ÎÒÃÇÒª±£ÁôËûÃǵĹ²ÐÔ£¬±ÈÈç¶¼ÄÜ·ÉÐУ¬²»Ï£Íû·ÉÐеĴúÂëÔÚ¸÷¸öÀàÖØ¸´Ð´£¬ÓÖÒªÈÃËûÃÇÄܸ÷×Ô¶ÀÁ¢µÄÉú²ú²»Í¬µÄ¶«Î÷¡£
ËùÒÔÎÒÃÇ¿ÉÒÔÓü̳ÐÀ´´¦Àí£¬¼Ì³Ð±íʾ¸¸×Ó¹ØÏµ£¬±»¼Ì³ÐµÄ½Ð¸¸À࣬¼Ì³ÐµÄ½Ð×ÓÀà¡£ÓÃextends±íʾ¼Ì³Ð
//½¨ÖþÀà
class building
{
function fly()
{
//½¨Öþ·ÉÐеĴúÂë
}
}
//±øÓªÀà
class marineBuilding extends building
{
function createMarine()
{
//ÖÆÔì»úǹ±øµÄ´úÂë
}
}
//̹¿Ë·¿Àà
class tankBuilding extends building
{
function createTank()
{
//ÖÆÔì̹¿ËµÄ´úÂë
}
}
½ÓÏÂÀ´£¬ÎÒÃÇ¿´¿´¼Ì³Ð²úÉúµÄЧ¹û£º
//Èç¹ûÔìÁËÒ»¸ö±øÓª£º
$mb1 = new marineBuilding();
/**
Ò»µ©ËûÐèÒª·ÉÐУ¬¾Í¿ÉÒÔÖ±½ÓʹÓý¨ÖþÀàµÄº¯Êýfly()£¬¾¡¹Ü±øÓªÀàµÄ¶¨ÒåÀïûÓÐÕâ¸öº¯Êý
*/
$mb1->fly();
//¶øËûÒªÖÆÔì»úǹ±øµÄʱºò£º
$mb1->createMarine();
ͬÑùÊǼ̳н¨ÖþÀàµÄ̹¿Ë·¿À࣬¾ÍÎÞ·¨ÖÆÔì»úǹ±ø£¬ÒòΪÕâÊDZøÓªÀàµÄ¸öÐÔ¡£
Èç¹ûÔÚ×ÓÀàÖеĺ¯Êýµ÷Óø¸ÀàµÄº¯Êý£¬ÒªÊ¹ÓÃparent£¬±ÈÈçparent::fly()
×¢Ò⣬һ¸öÀàÖ»ÄÜÓÐÒ»¸ö¸¸À࣬PHP²»ÔÊÐí¶àÖØ¼Ì³Ð£¬Ò²¾ÍÊÇ˵һ¸öº¢×ÓÖ»ÄÜÓÐÒ»¸öµù£¬Ò»¸öµù¿ÉÒÔÓÐN¸öº¢×Ó£¡
Îå¡¢·ÃÎÊ¿ØÖÆ
Èç¹ûÓÃ$attackNumber = 10±íʾÊôÐԵϰ£¬ÏµÍ³Ä¬ÈÏÊÇpublic $attackNumber = 10£¬ËùÒÔ½¨ÒéÕâÑùд£º
class marine
{
public static $attackNumber = 10; //¹¥»÷Á¦µÄÊý×Ö
}
public±íʾÕâ¸öÊôÐÔÊǹ«¹²µÄ£¬Ò²¾ÍÊÇÔÚÈκεط½¶¼¿ÉÒÔ·ÃÎʺͲÙ×÷µÄ¡£
µ«Õâ¾Í´æÔÚһЩÎÊÌ⣬Èç¹ûÓÐÍæ¼ÒÖªµÀÁËÀàmarineµÄһЩ´úÂë½á¹¹£¬ÄÇËû×ö¸ö¼òµ¥µÄ²¹¶¡³ÌÐò£¬ÔËÐеÄʱºò¼ÓÔØÉÏÈ¥£º
//²¹¶¡
marine::$attackNumber = 10000;
ÕâÑùµÄ»°£¬ËûµÄ»úǹ±øÓÐ10000µÄ¹¥»÷Á¦£¬ºÇºÇ£¬ÕâÑùµÄ»°£¬Ë´òµÃ¹ýËû£¡
Ϊ´ËÎÒÃÇÒªÓÃprivate£¬±íʾÕâ¸öÊôÐÔÖ»ÓÐÀàÀïÃæµÄº¯Êý²ÅÄÜ·ÃÎÊ£º
class marine
{
private static $attackNumber = 10; //¹¥»÷Á¦µÄÊý×Ö
//Õâ¸öº¯Êý±íʾ»úǹ±øÉý¼¶µÄÔËÐдúÂë
function upgrade()
{
//ÕâÑù·ÀÖ¹ÎÞÏÞÉý¼¶
if(self::$attacknum<13)
{
self::$attacknum++;
}
}
}
ÕâÑùÒ»À´£¬Ö»ÓÐÉý¼¶²ÅÄܸıä»úǹ±øµÄ¹¥»÷Á¦¡£
µ«ÊÇÏÖÔÚÍùÍùÊÇÍŶӿª·¢£¬¶øÇҺܶàÓõ½ÀàµÄ¼Ì³Ð£¬Èç¹ûprivateµÄ»°£¬×ÓÀà¾ÍÎÞ·¨·ÃÎÊÁË£¬µ«ÓÖ²»Ï£ÍûËæ±ã¶¼¿ÉÒÔÐÞ¸ÄijЩÊôÐÔ¡£
ÄÇô¿ÉÒÔÓÃprotected£¬protectedµÄÊôÐÔ¿ÉÒÔ±»×ÓÀàµÄº¯Êý·ÃÎÊ¡£
Áù¡¢ÖØÔØ
6.1¡¢ÊôÐÔÖØÔØ
Èç¹ûÎÒÃǰѵØÃ沿¶Ó×÷Ϊһ¸öÀ࣬Èûúǹ±øÀàÀ´¼Ì³ÐËû£¬ÕâʱºòÈç¹ûµØÃ沿¶ÓÀàºÍ»úǹ±øÀàÀïÃæ¶¼¶¨ÒåÁ˹¥»÷Á¦$attackNumber£¬ÄÇôÿ¸ö±øµÄ¹¥»÷Á¦¾Í¾ö¶¨ÓÚ»úǹ±øÀ࣬¶ø²»ÊǵØÃ沿¶Ó¡£Õâ¾Í½Ð×öÖØÔØ¡£
//µØÃ沿¶Ó
class groundArmy
{
public $attackNumber = 5;
}
//»úǹ±ø
class marine extends groundArmy
{
public $attackNumber = 10; //¹¥»÷Á¦µÄÊý×Ö
}
$m1 = new marine();//н¨Ò»¸ö»úǹ±ø
echo $m1->attackNumber;//ÏÔʾ¹¥»÷Á¦Îª10
6.2¡¢º¯ÊýÖØÔØ
ÖØÔØÒ²¿ÉÒÔÓÃÓÚº¯Êý£¬×ÓÀàµÄº¯ÊýÈç¹ûºÍ¸¸ÀຯÊýͬÃû£¬³ý·ÇÁíÐÐ˵Ã÷£¬·ñÔò×ÓÀàµÄ¶ÔÏóĬÈϵ÷ÓÃ×ÓÀàÄڵĺ¯Êý¡£
±ÈÈçÈË×åµÄ¹í±øÀàghostºÍÉñ×åÀàµÄºÚ°µÊ¥ÌÃÀࣨÒþµ¶£©£¬¶¼ÊÇÒþÐαøÖÖ£¬µ«ÊÇ¹í±øÒþÐεÄʱºò»á¼õÉÙÄÜÁ¿£¬ºÚ°µÊ¥Ìøù±¾Ã»ÓÐÄÜÁ¿ÊôÐÔ¡£
Èç¹ûÎÒÃǰÑÒþÐÎÄÜÁ¦×÷Ϊ¸¸À࣬¹í±øÀàghostºÍÉñ×åÀàµÄºÚ°µÊ¥ÌÃÀàDarkTemplarÀ´¼Ì³ÐËü£¬Í¬Ê±ÊµÏÖ²»Í¬µÄÒþÐδúÂ룺
//ÒþÐÎÄÜÁ¦Àà
class concealAbility
{
//Õâ¸öº¯Êý±íʾÒþÐεÄÔËÐдúÂë
function conceal()
{
//ÒþÐεÄÔËÐдúÂë
}
}
//¹í±øÀà
class ghost extends concealAbility
{
$energy = 150;
//Õâ¸öº¯Êý±íʾÒþÐεÄÔËÐдúÂë
function conceal()
{
//ÒþÐεÄÔËÐдúÂë
//¼õÉÙ¹í±øµÄÄÜÁ¿£¬$this±íʾµ±Ç°¶ÔÏó£¬Ò²¾ÍÊǵ±Ç°Õâ¸ö¹í±ø
$this->energy -= 25;
}
}
//ºÚ°µÊ¥ÌÃÀà
class DarkTemplar extends concealAbility
{
//Õâ¸öº¯Êý±íʾÒþÐεÄÔËÐдúÂë
function conceal()
{
//ÒþÐεÄÔËÐдúÂ룬²»Ó°ÏìÄÜÁ¿
}
}
//н¨Ò»¸ö¹í±ø
$g1 = new ghost();
//ÏÔʾÄÜÁ¿Îª150
echo $g1->energy;
//¹í±øÒþÐÎ
$g1->conceal();
//ÏÔʾÄÜÁ¿Îª125
echo $g1->energy;
//н¨Ò»¸öºÚ°µÊ¥ÌÃ
$d1 = new DarkTemplar();
//ºÚ°µÊ¥ÌÃÒþÐΣ¬ËûûÓÐÄÜÁ¿ÊôÐÔ
$g1->conceal();
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ÄÇÎÒÃDz»Óü̳ÐÒ²ÐУ¬µ«ÊÇ¿ª·¢×éµÄÆäËûÈËÒ»µ©Éæ¼°µ½Õì²ì»ú£¬Òª°Ñ³¤³¤µÄ´úÂë¶ÁÒ»±éÂð£¿ÓÐûÓпÉÄÜÖªµÀÀàµÄËùÓз½·¨µÄ¼òÒªÃèÊö£¿
¿ÉÒÔÓõ½½Ó¿Úinterface£¬Ò»¸öÀà¿ÉÒÔÖ´ÐУ¨¼Ì³Ð£©¶à¸ö½Ó¿Ú£¬½Ó¿ÚÖж¨ÒåµÄº¯Êý²»ÄÜÓк¯ÊýÌ壬ִÐнӿڵÄÀà±ØÐ뽫ÕâЩº¯ÊýÍêÕû¶¨Òå¡£
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//ÒþÐÎÄÜÁ¦µÄ½Ó¿Ú
interface concealAbility
{
public function conceal();
}
//·ÉÐÐÄÜÁ¦µÄ½Ó¿Ú
interface flyAbility
{
public function fly();
}
//Õì²ì»úÀà
class Wraith implements flyAbility, concealAbility
{
//Õâ¸öº¯Êý±íʾÕì²ì»ú·ÉÐеÄÔËÐдúÂë
function fly()
{
//·ÉÐеÄÔËÐдúÂë
}
//Õâ¸öº¯Êý±íʾÕì²ì»úÒþÐεÄÔËÐдúÂë
function conceal()
{
//ÒþÐεÄÔËÐдúÂë
}
}
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