PHPデザインパターンのブリッジモードの詳細説明

<?php

/*
 * 桥接模式
 */

interface allPan
{
    public function setColor();
}


abstract class Pan
{
    public $color;

    public function setColor()
    {
    }

    public function write()
    {
    }
}

class  maxPan extends Pan
{
    public function write()
    {
        $this->color->setcolor();
        echo "写出来的粗体字";
    }
}

class smallPan extends Pan
{
    public function write()
    {
        $this->color->setcolor();
        echo "写出来的细体字";
    }
}

class Red implements allPan
{
    public function setColor()
    {
        echo "红色";
    }
}

class Blick implements allPan
{
    public function setColor()
    {
        echo "黑色";
    }
}

function testDriver() //客户端
{
    $colors = new maxPan();
    $colors->color = new Red();
    $colors->write();
}

testDriver();