PHP实现的简单三角形、矩形周长面积计算器分享
这篇文章主要介绍了PHP实现的简单三角形、矩形周长面积计算器分享,本文的实现相对较简单,同时提供了代码文件下载,需要的朋友可以参考下
运用PHP面向对象的知识设计一个图形计算器,,同时也运用到了抽象类知识,这个计算器可以计算三角形的周长和面积以及矩形的周长和面积。本图形计算器有4个页面:1.PHP图形计算器主页index.php; 2.形状的抽象类shape.class.php; 3三角形计算类triangle.class.php; 4.矩形计算类rect.class.php。
PHP图形计算器代码点击下载: php图形计算器.zip
代码分别如下:
PHP图形计算器主页:
简单的图形计算器
矩形 || 三角形view(); //第三步:用户是否提交了对应图形界面的表单 if(isset($_POST['dosubmit'])) { //第四步:查看用户输出的数据是否正确, 失败则提示 if($shape->yan($_POST)) { //计算图形的周长和面积 echo $shape->name."的周长为:".$shape->zhou()."
"; echo $shape->name."的面积为:".$shape->area()."
"; } } //如果用户没有单击链接, 则是默认访问这个主程序 }else { echo "请选择一个要计算的图形!
"; } ?>
形状的抽象类:
abstract class Shape{ //形状的名称 public $name; //形状的计算面积方法 abstract function area(); //形状的计算周长的方法 abstract function zhou(); //形状的图形表单界面 abstract function view(); //形状的验证方法 abstract function yan($arr); }
三角形计算类文件:

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