php计算器

来源：互联网发布：遗传算法的基本步骤编辑：程序博客网时间：2024/05/01 14:21

apache在doc下的开启与关闭

//需要配置apache安装环境变量

httpd -k start 开启

httpd -k stop 关闭

httpd -k restart 重启

appserv下载：点击下载

<!DOCTYPE html><html>   <head>     <title>  计算器 </title>   </head> <body>      <div align="center">   <h1>计算器</h1>   <form action="counter.php" method="post">   num1:<input type="text" name="num1">   <select name="oper">   <option value="+">+</option>   <option value="-">-</option>   <option value="*">*</option>   <option value="/">/</option>   </select>   num2:<input type="text" name="num2">      <input type="submit" value="提交">   <br/>   <?php  // require 'counter02.php';  if(isset($_REQUEST['num1']))  {$num1=$_REQUEST['num1'];  }  else if(isset($_REQUEST['num2']))  {$num2=$_REQUIEST['num2'];  }  else if(isset($_REQUEST['oper']))  {$oper=$_REQUEST['oper'];  }  $count=new counter();?>    <h3>结果：</h3><?php    echo $count->getResult($num1,$num2,$oper);?><?php  class counter{   public function getResult($num1,$num2,$oper){   switch($oper)   { case '+': return $num1+$num2; break; case '-': return $num1-$num2; break; case '*': return $num1*$num2; break; case '/': return $num1/$num2; break; default: echo "请输入数据。";  }}  }?></div> </body></html>