簡單工廠模式之php實作 c#簡單工廠模式 工廠模式 java java簡單工廠模式實例

以下内容以一个简单的计算器程序作为案例分析。第一步，定义Operation，是一个父类，有两个属性，表示用于计算的两个参数。

<?php
/*
* 计算类
*/
class Operation{
	private $numA=0;
	private $numB=0;
	public function setNumA($numA)
	{
		$this->numA=$numA;
	}

	public function getNumA()
	{
		return $this->numA;
	}

	public function setNumB($numB)
	{
		$this->numB=$numB;
	}

	public function getNumB()
	{
		return $this->numB;
	}
}
?>

<?php
/*
*工厂接口
*/
interface InterOperate{
	function getResult();
}
?>

<?php

/**
* 加法运算类
*/
include_once "IOperate.php";
include_once &#39;Operation.php&#39;;
class OperationAdd extends Operation implements InterOperate
{
	function getResult()
	{
		$result=$this->getNumA()+$this->getNumB();
		return $result;
	}
}

?>

<?php
include_once "OperationAdd.php";
include_once "OperationMinus.php";
class SimpleFactory {
	static function createAdd()
	{
		return new OperationAdd;
	}

	static function createMinus()
	{
		return new OperationMinus;
	}
}

?>

<?php
/*
*	客户端代码
*/
include_once "OperationAdd.php";
include_once &#39;Operation.php&#39;;
include_once &#39;SimpleFactory.php&#39;;

$op=SimpleFactory::createAdd();
$op->setNumA(2);
$op->setNumB(4);
echo $op->getResult();

$om=SimpleFactory::createMinus();
$om->setNumA(45);
$om->setNumB(34);
echo "<br>";
echo $om->getResult();
?>