代码 - 黑马程序员技术交流社区 - 黑马程序员IT技术论坛

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"xml:lang="zh-cn">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>站长下载|中国最大的站长资源站</title>
<!--meta http-equiv="Content-Language" content="zh-cn">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"-->
<meta name="keyworlds" content="关键字列表"/ >
<link rel="stylesheet" type="text/css" href=""/>
<style type="text/css"></style>
<script type="text/javascript"></script>
</head>
</body>
<?php
if(!empty($_POST)){
$d1=$_POST['data1'];
$d2=$_POST['data2'];
$n1=$_POST['num1'];
$n2=$_POST['num2'];
$n3=$_POST['yunsuanfu'];
echo "d1=$d1,d2=$d2";
If(n3=="+"){$jieguo=$n1+$n2;
}
echo"<hr/r>";
print_r($_POST);
}else{echo"非法的页面访问";}
?>
<form action="" method="post">
<input type="text" name="num1"/>
<select name ="yunsuanfu">
<option value="+">+</option>
<option value="-">-</option>
<option value="*">*</option>
<option value="/">/</option>
</select>
<input type="text" name="num2"/>
<input type="submit" name="="/>
<input type="text" name="result" value="<?php echo $jieguo ;?>"/>
</form>
<form action="8post_data.php" method="post">
数据1：<input type="text" name="data1"/>
<br/>
数据2：<input type="text" name="data2"/>
<br/>
<input type="submit" value="提交"/>
</form>
</body>
</html>

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