コード全体の表示
#1,プロジェクト ディレクトリ
##2,すべてのコードの表示:
index.php:<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>图形计算器</title>
<style>
* {
margin: 0px;
padding: 0px;
}
#contains {
width: 500px;
margin: 20px auto;
background: skyblue;
text-align: center;
}
h1 {
width: 500px;
height: 60px;
}
a {
font-size: 20px;
text-decoration: none;
}
#footer {
width: 300px;
background: #fff;
margin: 0 auto;
padding: 5px 10px;
border-radius: 150px;
}
</style>
</head>
<body>
<div id="contains">
<h1>简易图形计算器</h1>
<a href='index.php?action=rect'>矩形</a> |
<a href='index.php?action=triangle'>三角形</a> |
<a href='index.php?action=cirle'>圆形</a> |
<a href='index.php?action=sphere'>球体</a>
<hr>
<?php
ini_set("display_errors", "On"); //开启错误调试
//设置错误报告的级别,除了无关紧要的'注意',其他的报告都输出
error_reporting(E_ALL & ~E_NOTICE);
function __autoload($classname) { //魔术方法 自动加载类
require "./$classname.class.php"; //将类名转化成小写
}
if (!empty($_GET['action'])) {
// echo "传送成功";
$classname = ucfirst($_GET['action']);
$shape = new $classname($_POST);
$shape->view($_POST);
if (isset($_POST['sub'])) {
echo "<div id='footer'>";
if($shape->name!='球体'){
if ($shape->yan($_POST)) {
echo "<b>".$shape->name."的周长".$shape->zhou()."</b>"."<br>";
echo "<br>";
echo "<b>".$shape->name."的面积".$shape->area()."</b>"."<br>";
}else {
echo "<b>错误:$shape->error</b>";
}
echo "</div>";
}else{
if ($shape->yan($_POST)) {
echo "<b>".$shape->name."的表面积".$shape->area()."</b>"."<br>";
echo "<br>";
echo "<b>".$shape->name."的体积".$shape->zhou()."</b>"."<br>";
}else {
echo "<b>错误:$shape->error</b>";
}
echo "</div>";
}
}
} else {
echo "请选择一个图形";
}
?>
</div>
</body>
</html>
##Shape.class.php:
#
<?php abstract class Shape { private $name; private $error; abstract function area(); abstract function zhou(); abstract function view($arr); abstract function yan($arr); } ?>
##Rect.class.php:#
<?php class Rect extends Shape { private $width; private $height; function __construct($arr = array()) { if (!empty($arr)) { $this->width = $arr['width']; $this->height = $arr['height']; } $this->name = "矩形"; $this->error = ''; } function area() { return $this->width * $this->height; } function zhou() { return ($this->width+$this->height) * 2; } function view($arr) { $form=''; $form .= "<form action='index.php?action=rect' method='post'>"; $form .= "请输入".$arr['name']."的宽度:<input type='text' name='width' value='".$_POST['width']."'/><br>"; $form .= "<br>"; $form .= "请输入".$arr['name']."的长度:<input type='text' name='height' value='".$_POST['height']."'/><br>"; $form .= "<br>"; $form .= "<input type='submit' name='sub' value='提交'/> "; $form .= "<input type='reset' name='ret' value='重置'/>"; $form .= "</form>"; echo $form; } function yan($arr) { $bz = true; if ($arr['width']< 0) { $this->error .= "宽度小于0;"; $bz = false; } else { if (!is_numeric($arr['width'])) { $this->error .= "宽不是数字;"; $bz = false; } } if ($arr['height']< 0) { $this->error .= "宽度小于0;"; $bz = false; } else { if (!is_numeric($arr['height'])) { $this->error .= "高不是数字;"; $bz = false; } } return $bz; } } ?>
Triangle.class.php:
<?php class Triangle extends Shape { private $bian1; private $bian2; private $bian3; function __construct($arr = array()) { if (!empty($arr)) { $this->bian1 = $arr['bian1']; $this->bian2 = $arr['bian2']; $this->bian3 = $arr['bian3']; } $this->name = "三角形"; $this->error = ''; } function area() { $p = ($this->bian1 + $this->bian2 + $this->bian3) / 2; // p(p-a)(p-b)(p-c) return sqrt($p*($p-$this->bian1)*($p-$this->bian2)*($p-$this->bian3)); } function zhou() { return $this->bian1+$this->bian2+$this->bian3; } function view($arr) { $form=''; $form .= "<form action='index.php?action=triangle' method='post'>"; $form .= "请输入".$arr['name']."的第一条边:<input type='text' name='bian1' value='".$_POST['bian1']."'/><br>"; $form .= "<br>"; $form .= "请输入".$arr['name']."的第二条边:<input type='text' name='bian2' value='".$_POST['bian2']."'/><br>"; $form .= "<br>"; $form .= "请输入".$arr['name']."的第三条边:<input type='text' name='bian3' value='".$_POST['bian3']."'/><br>"; $form .= "<br>"; $form .= "<input type='submit' name='sub' value='提交'/> "; $form .= "<input type='reset' name='ret' value='重置'/>"; $form .= "</form>"; echo $form; } function yan($arr) { $bz = true; if ($arr['bian1']< 0) { $this->error .= "第一条边小于0;"; $bz = false; } else { if (!is_numeric($arr['bian1'])) { $this->error .= "第一条边不是数字;"; $bz = false; } } if ($arr['bian2']< 0) { $this->error .= "第二条边小0;"; $bz = false; } else { if (!is_numeric($arr['bian2'])) { $this->error .= "第二条边不是数字;"; $bz = false; } } if ($arr['bian2']< 0) { $this->error .= "第三条边小于0;"; $bz = false; } else { if (!is_numeric($arr['bian2'])) { $this->error .= "第三条边不是数字;"; $bz = false; } } if (($this->bian1+$this->bian2) < $this->bian3 ||($this->bian1+$this->bian3) < $this->bian2 ||($this->bian2+$this->bian3) < $this->bian1) { $this->error .= "三条边不能构成三角形"; $bz = false; } return $bz; } } ?>
#Circle.class.php :
<?php
class Cirle extends Shape {
private $r;
function __construct($arr = array()) {
if (!empty($arr)) {
$this->r = $arr['r'];
}
$this->name = "圆形";
$this->error = '';
}
function area() {
return pi()* $this->r* $this->r; ;
}
function zhou() {
return 2*$this->r*pi();
}
function view($arr) {
$form='';
$form .= "<form action='index.php?action=cirle' method='post'>";
$form .= "请输入".$arr['name']."的半径:<input type='text' name='r' value='".$_POST['r']."'/><br>";
$form .= "<br>";
$form .= "<input type='submit' name='sub' value='提交'/> ";
$form .= "<input type='reset' name='ret' value='重置'/>";
$form .= "</form>";
echo $form;
}
function yan($arr) {
$bz = true;
if ($arr['r']< 0) {
$this->error .= "半径小于0;";
$bz = false;
} else {
if (!is_numeric($arr['r'])) {
$this->error .= "半径不是数字;";
$bz = false;
}
}
return $bz;
}
}
?>
#Sphere.class.php:
<?php class Sphere extends Shape { private $r; function __construct($arr = array()) { if (!empty($arr)) { $this->r = $arr['r']; } $this->name = "球体"; $this->error = ''; } //4π(R的平方),体积 4/3π*r的立方 //球的面积 function area() { return 4*pi()* $this->r* $this->r; ; } //求的体积 function zhou() { return pow((4/3)*$this->r*pi(),3); } function view($arr) { $form=''; $form .= "<form action='index.php?action=sphere' method='post'>"; $form .= "请输入".$arr['name']."的半径:<input type='text' name='r' value='".$_POST['r']."'/><br>"; $form .= "<br>"; $form .= "<input type='submit' name='sub' value='提交'/> "; $form .= "<input type='reset' name='ret' value='重置'/>"; $form .= "</form>"; echo $form; } function yan($arr) { $bz = true; if ($arr['r']< 0) { $this->error .= "半径小于0;"; $bz = false; } else { if (!is_numeric($arr['r'])) { $this->error .= "半径不是数字;"; $bz = false; } } return $bz; } } ?>
# #