標籤：
<?php //php策略模式 interface Math{ public function calc($op1,$op2); } class MathAdd implements Math{ public function calc($op1,$op2){ return $op1+$op2; } } class MathSub implements Math{ public function calc($op1,$op2){ return $op1-$op2; } } class MathMul implements Math{ public function calc($op1,$op2){ return $op1*$op2; } } class MathDiv implements Math{ public function calc($op1,$op2){ return $op1/$op2; } }//封裝一個虛擬電腦 class CMath{ protected $calc=null; public function __construct($type){ $calc=‘Math‘.$type; $this->calc=new $calc(); } public function calc($op1,$op2){ return $this->calc->calc($op1,$op2); } } $type=$_POST[‘op‘]; $cmath=new CMath($type); echo $cmath->calc($_POST[‘op1‘],$_POST[‘op2‘]);
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>策略模式</title></head><body> <form action=‘2.php‘ method="post"> <input type="text" name="op1"> <select name="op"> <option value="add">+</option> <option value="sub">-</option> <option value="mul">*</option> <option value="div">/</option> </select> <input type="text" name="op2"> <p><input type="submit" name="" value="計算"></p> </form></body></html>
策略模式實現簡單的計算機功能
php策略模式
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