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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;
}
//.......
/*
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*/
protected abstract function getInterstRate();
}
?>
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http://www.cnblogs.com/mustardpeanut/archive/2009/06/15/1503395.html
http://blog.csdn.net/letianok/archive/2009/02/27/3941731.aspx
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