Home > php教程 > php手册 > PHP计算加权平均数的方法,php计算加权平均

PHP计算加权平均数的方法,php计算加权平均

WBOY
Release: 2016-06-13 08:57:50
Original
1731 people have browsed it

PHP计算加权平均数的方法,php计算加权平均

本文实例讲述了PHP计算加权平均数的方法。分享给大家供大家参考。具体如下:

<form action="index.php" method="post">
请输入你的课程的数量:<input type="text" name="course_number"/><br/>
<input type="submit" value="submit"/>
</form>

Copy after login
<&#63;php session_start();
  $course_number=$_POST["course_number"];
  $_SESSION["course_number"]=$course_number;
  $m=0;
  echo "<form action='result.php' method='post'>";
  for($i=0;$i<$course_number;$i++):&#63;>
  分数:<input type="text" name="<&#63;php echo "course".$i;&#63;>" />-------学分(权重):<input type="text" name="<&#63;php echo "credit".$i;&#63;>" /><br/><br/>
  <&#63;php 
  endfor;
  echo "<input type='submit' value='submit'>";
  echo "</form>"."<br/>";
&#63;>

Copy after login
<&#63;php session_start();
  $score=array();
  $balance=array();
  $sum=0;
  $total_score=0;
  $result=0;
  for($i=0;$i<$_SESSION["course_number"];$i++)
  {
    $score[$i]=$_POST["course".$i];
  }
  for($i=0;$i<$_SESSION["course_number"];$i++)
  {
    $balance[$i]=$_POST["credit".$i];
  }
  for($i=0;$i<$_SESSION["course_number"];$i++)
  {
    $sum=$sum+$score[$i]*$balance[$i];
  }
  for($i=0;$i<$_SESSION["course_number"];$i++)
  {
    $total_score=$total_score+$balance[$i];
    echo $total_score."<br>";
  }
  $result=$sum/$total_score;
  echo "您的加权平均为:".$result;
&#63;>

Copy after login

希望本文所述对大家的php程序设计有所帮助。

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template