PHP面向对象深入理解之四(设计模式-工厂模式)

女爷i 2022-06-10 00:41 226阅读 0赞

适用于创建相同类型的模型类 能使代码更加健壮  
举个栗子：车Car --> 奥迪，福特，宝马... 我们要造一辆

重要的是我们不需要引入所有相关类，我们只需要引入一个工厂类 即可

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interface Car
    {
    	public function makeCircle();
    	public function makeBody();
    	public function makeEngine();
    	public function makeDecoration();
    }
    
    class Audi
    {
    	public function makeCircle()
    	{
    	    echo 'make Audi Circle';
    	}
    	public function makeBody()
    	{
    	    echo 'make Audi Body';
    	}
    	public function makeEngine()
    	{
    	    echo 'make Audi Engine';
    	}
    	public function makeDecoration()
    	{
    	    echo 'make Audi Decoration';
    	}
    	public function makeAuto()
    	{
    	}
    }
    class Ford
    {
    	public function makeCircle()
    	{
    	    echo 'make Audi Circle';
    	}
    	public function makeBody()
    	{
    	    echo 'make Audi Body';
    	}
    	public function makeEngine()
    	{
    	    echo 'make Audi Engine';
    	}
    	public function makeDecoration()
    	{
    	    echo 'make Audi Decoration';
    	}
    	public function makeHandle()
    	{
    	}
    }
    class BMW
    {
    	public function makeCircle()
    	{
    	    echo 'make BMW Circle';
    	}
    	public function makeBody()
    	{
    	    echo 'make BMW Body';
    	}
    	public function makeEngine()
    	{
    	    echo 'make BMW Engine';
    	}
    	public function makeDecoration()
    	{
    	    echo 'make BMW Decoration';
    	}
    	public function makeAll()
    	{
    	}
    }
    class CarFactory 
    {
    	static public function create($class,$params)
    	{
    		if(!class_exists($class)){
    			throw new Exception("class not existis!");
    		}
    		return new $class($params);
    	}
    }
    $audi = CarFactory::create('Audi'，’15w‘);
    $audi->makeCircle();
    $bmw = CarFactory::create('BMW'，’100w‘);
    $bmw->makeAll();

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