PHP+MYSQL+HTML 学生成绩查询
首先创建一个数据库名为 xscj，表信息如下：
页面信息为：
<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>学生成绩查询</title>
<style type="text/css">
#apDiv1 {
position:absolute;
width:200px;
height:151px;
z-index:1;
left: 199px;
top: 11px;
}
#apDiv2 {
position:absolute;
width:319px;
height:57px;
z-index:2;
left: 506px;
top: 57px;
font-size:50px;
color:#BBB;
}
#apDiv3 {
position:absolute;
width:1147px;
height:65px;
z-index:3;
left: 36px;
top: 175px;
}
#a4
{
position:absolute;
left: 264px;
top: 213px;
width: 760px;
height: 321px;
}
</style>
</head>
<body>
<div id="apDiv1"><img src="img/res07_attpic_brief.jpg" width="383" height="157" /></div>
<div id="apDiv2">成绩查询结果</div>
<div id="apDiv3"><hr></div>
<div id="a4">
<?php
$link=mysql_connect('localhost','root','123') or die ("不能连接数据库,错误原因：".mysql_error());
mysql_select_db('xscj',$link) or die ("不能选择数据库");
$xuehao=$_POST["学号"];
$name=$_POST["姓名"];
$project=$_POST["专业"];
if(!$xuehao)
{echo "<script type='text/javascript'> alert('请输入学号');location.href='mm.php';</script>";}
else{
$q="select * from xs where 学号='$xuehao'";
if($name)
{$q.="and 姓名='$name'";}
if($project)
{$q.="and 专业名='$project'";}
$result=mysql_query($q);
}
if(@mysql_num_rows($result)==0)
{echo "<script type='text/javascript'> alert('无此人记录');location.href='mm.php';</script>";}
else
{
echo "<br>";
while ($row=mysql_fetch_array($result))
{
//显示所查询学生的信息表
echo "<table with=600 border='0' align='center' bordercolor='#000000'>";
echo "<tr><td width=70 height=30 bgcolor=#cccccc>学号</td>";
echo "<td width=100 height=30>$row[学号]</td>";
echo "<td width=70 height=30 bgcolor=#cccccc>姓名</td>";
echo "<td width=70 height=30>$row[姓名]</td></tr>";
echo "<tr><td width=70 height=30 bgcolor=#cccccc>专业名</td>";
echo "<td width=100 height=30>$row[专业名]</td>";
echo "<td width=70 height=30 bgcolor=#cccccc>出生日期</td>";
echo "<td width=100 height=30>$row[出生日期]</td></tr>";
echo "<tr><td width=70 height=30 bgcolor=#cccccc>总学分</td>";
echo "<td width=100 height=30>$row[总学分]</td></tr>";
}
echo '</table>';
echo "<br>";
echo "<br>";echo "<br>";
echo "<div align=center><font color='黑色'><h2>课程信息如下:</h2></font></div>";
echo "<br>";
echo "<br>";
//显示学生所选课程的成绩情况
echo "<table width=600 border='1' align='center' bordercolor='#000000'>";
echo "<tr><td width=35height=30 bgcolor=#cccccc>学号</td>";
echo "<td width=35 height=30 bgcolor=#cccccc>成绩</td>";
echo "<td width=50 height=30 bgcolor=#cccccc>课程名</td>";
echo "<td width=50 height=30 bgcolor=#cccccc>课程号</td>";
echo "<td width=35 height=30 bgcolor=#cccccc>学分</td>";
echo "<td width=35 height=30 bgcolor=#cccccc>学时</td></tr>";
$sql="select * from xs_kc_st where 学号='$xuehao'"; //在视图xs_kc_st 中查询
$res=mysql_query($sql);
while($rw=mysql_fetch_row($res))
{ echo '<tr>';
foreach($rw as $data)
{echo '<td>'.$data.'</td>';}
echo '<tr>';}
echo '</table>';
mysql_free_result($result);
}
?>
</div>
</body>
</html>
页面2：
<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>学生成绩查询</title>
<style type="text/css">
#apDiv1 {
position:absolute;
width:658px;
height:308px;
z-index:5;
left: 371px;
top: 196px;
}
#apDiv2 {
position:absolute;
width:412px;
height:91px;
z-index:6;
left: 504px;
top: 62px;
font-size:50px;
color:#FFF;
}
#bj
{
position:absolute;
z-index:1;
width:1345px;
height:308px;
left: 2px;
top: -1px;
}
</style>
</head>
<body>
<div id="bj">
<div id="apDiv1">
<form action="mm2.php" method="post">
<table width="586" border="1" align="center" bordercolor="#000000">
<tr>
<td height="59" colspan="2"><center><h2>
请输入查询条件
</h2></center></td>
</tr>
<tr>
<td width="51" height="51"><h3>学号:</h3></td>
<td width="168"><select name="学号">
<?php
$link = mysql_connect("localhost", "root", "123")
or die("Could not connect : " . mysql_error());
mysql_select_db("xscj") or die("Could not select database");
$query = mysql_query("SELECT * FROM xs") ;
while($row = mysql_fetch_array($query)) {
$id = $row['学号'];
echo "<option value='$id'>$id</option>";
}
$stunumber=$_GET["q1"];
$sql="select 姓名,专业名,课程名,成绩,学分 from v_s where 学号='$stunumber'";
$result=mysql_query($sql);
$row=mysql_fetch_array($result);
?>
</select></td>
</tr>
<tr>
<td height="51"><h3>姓名:</h3></td>
<td><input type="text" name="姓名" /></td>
</tr>
<tr>
<td height="51"><h3>专业:</h3></td>
<td width="20" height="36">
<select name="专业">
<option>所有专业</option>
<option>计算机</option>
<option>通信工程</option>
</select>
</tr>
<tr>
<td height="65" colspan="2"><center>
<input type="submit" value="查询" />
<input type="reset" value="取消" />
</center></td>
</tr>
</table>
</form>
</div>
<div id="apDiv2"><strong>学生成绩查询系统</strong></div>
<img src="img/2.jpg" width="1394" height="650" /> </div>
</body>
</html>
网页预览如下：
下拉菜单中可以获取出数据库的学号，点击学号 选择专业后会查询出相应的内容
如果没有该学生信息则会提示无此人记录
