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<html><br /> <head><br /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><br /> <title>图形的周长和面积计算器</title><br /> </head><br /><br /> <body><br /> <br /> <?php<br /> //自动加载<br /> requireonce"class_Rect.php";<br /> requireonce"class_Triangle.php";<br /> requireonce"class_Circle.php";<br /><br /> function __autoload($className){<br /> include("class_".ucfirst($className).".php");<br /> }<br /> ?><br /> <center><br /> <h2>图形的周长和面积计算器</h2><br /> <hr><br /> <a href="test.php?action=1">矩形</a>||<br /> <a href="test.php?action=2">三角形</a>||<br /> <a href="test.php?action=3">圆形</a><hr><br /> </center><br /><br /> <?php<br /> switch($_REQUEST["action"]) {<br /> case '1':<br /> $form=new Form("矩形",$_REQUEST,"test.php");<br /> echo $form;<br /> break;<br /><br /> case '2':<br /> $form=new Form("三角形",$_REQUEST,"test.php","post","_blank");<br /> echo $form;<br /> break;<br /><br /> case '3':<br /> $form=new Form("圆形",$_REQUEST,"test.php");<br /> echo $form;<br /> break;<br /><br /> default:<br /> echo "请选择一个形状<br>";<br /> <br /> }<br /><br /> if (isset($_REQUEST["act"])) {<br /> switch ($_REQUEST["act"]) {<br /> case '1':<br /> $shape=new Rect($_REQUEST);<br /> break;<br /><br /> case '2':<br /> $shape=new Triangle($_REQUEST);<br /> break;<br /><br /> case '3':<br /> $shape=new Circle($_REQUEST);<br /> break;<br /> <br /> }<br /><br /> echo "面积为：".$shape->area()."<br>";<br /> echo "周长为：".$shape->perimeter()."<br>";<br /> }<br /> ?><br /><br /> </body><br /></html><br />$action = isset($_REQUEST["action"]) ? $_REQUEST["action"] : '';<br />switch($action)<br />{<br />//。。。。。。。。<br />}<br />
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