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abstract class LoadAccount
{
//ÀûÏ¢£¬±¾½ð
protected $interest, $fund;
public function calculateInterest() {
//È¡µÃÀûÂÊ
$this->interest = getInterestRate();
//ÓÃÓÚ¼ÆËãÀûÏ¢µÄËã·¨£º±¾½ð*ÀûÂÊ£¬µ«ÊÇÀûÂʵÄË㷨ʵÏÖ²¢Ã»ÓÐÔÚÕâ¸öÀàÖÐʵÏÖ
$this->interest = $this->getFund() * $this->getInterstRate();
return $this->interest;
}
private function getFund() {
return $this->fund;
}
//.......
/*
* ²»Í¬ÀàÐ͵Ĵæ¿îµÄÀûÂʲ»Í¬£¬Òò´Ë£¬
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* ¶ø½«ËûÍÆ³Ùµ½×ÓÀàÖÐʵÏÖ
*/
protected abstract function getInterstRate();
}
?>
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<?php
/*
Singleton && Registry Design Pattern Implementation
*/
class Registry {
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