请问如何用JS提取下面这段代码中的成绩和学分单元格里的数据,谢谢~~~~~

Question

将<table><tr><td>都加上一个ID名称，就可以取了。 今天晚了，代码明天看一下，写一段给你

Answer 1

var a=document.all("objID").innerHTML;

Answer 2

<table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#F2EDF8" id="otbl">
<tr bgcolor="#EAE2F3">
<td  height="25"  class=td_hz_bj><p align="center">课程号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">课程名</p></td>
<td  height="25"  class=td_hz_bj><p align="center">序号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">学分</p></td>
<td  height="25"  class=td_hz_bj><p align="center">考试时间</p></td>
<td  height="25"  class=td_hz_bj><p align="center">总成绩</p></td>
<td  height="25"  class=td_hz_bj><p align="center">替代课程号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">考试类型</p></td>
<td  height="25"  class=td_hz_bj><p align="center">备注</p></td>
<TR>
<td width="60" height="20" class=td_biaogexian><p align="center">04030071b</p></td>
<td width="200" height="20" class=td_biaogexian><p align="center">基础会计学(B)</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">3</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">3</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">20080715</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">优</p></td>
<td width="60" height="20" class=td_biaogexian><p align="center"></p></td>
<td width="60" height="20" class=td_biaogexian><p align="center">考查</p></td>
<td width="60" height="20" class=td_biaogexian><p align="center">&nbsp;</p></td>
</TR>
<TR>
<td width="60" height="20" class=td_biaogexian><p align="center">04040016a</p></td>
<td width="200" height="20" class=td_biaogexian><p align="center">操作系统</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">1</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">4</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">20080715</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">88</p></td>
<td width="60" height="20" class=td_biaogexian><p align="center"></p></td>
<td width="60" height="20" class=td_biaogexian><p align="center">考试</p></td>
<td width="60" height="20" class=td_biaogexian><p align="center">&nbsp;</p></td>
</TR>
</table><INPUT TYPE="button" value="提取" onclick="show()">
<SCRIPT LANGUAGE="JavaScript">
<!--
var arrScore = new Array();
var arrScore1 = new Array();
function show(){
var otbl = document.getElementById("otbl");
var rows = otbl.rows;
for(var i=1; i<rows.length; i++){
arrScore.push(rows[i].cells[3].innerText);
arrScore1.push(rows[i].cells[5].innerText);
}
alert("学分:"+arrScore);
alert("成绩:"+arrScore1);
}
//-->
</SCRIPT>

Answer 3

呵呵 要更兼容FF可以把rows[i].cells[3].innerText换成rows[i].cells[3].childNodes[0].innerHTML
...

Answer 4

<table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#F2EDF8" >
<tr bgcolor="#EAE2F3">
<td  height="25"  class=td_hz_bj><p align="center">课程号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">课程名</p></td>
<td  height="25"  class=td_hz_bj><p align="center">序号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">学分</p></td>
<td  height="25"  class=td_hz_bj><p align="center">考试时间</p></td>
<td  height="25"  class=td_hz_bj><p align="center">总成绩</p></td>
<td  height="25"  class=td_hz_bj><p align="center">替代课程号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">考试类型</p></td>
<td  height="25"  class=td_hz_bj><p align="center">备注</p></td>
<TR>
<td width="60" height="20" class=td_biaogexian><p align="center">04030071b</p></td>
<td width="200" height="20" class=td_biaogexian><p align="center">基础会计学(B)</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">3</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">3</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">20080715</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">优</p></td>
<td width="60" height="20" class=td_biaogexian><p align="center"></p></td>
<td width="60" height="20" class=td_biaogexian><p align="center">考查</p></td>
<td width="60" height="20" class=td_biaogexian><p align="center">&nbsp;</p></td>
</TR>
<TR>
<td width="60" height="20" class=td_biaogexian><p align="center">04040016a</p></td>
<td width="200" height="20" class=td_biaogexian><p align="center">操作系统</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">1</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">4</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">20080715</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">88</p></td>
<td width="60" height="20" class=td_biaogexian><p align="center"></p></td>
<td width="60" height="20" class=td_biaogexian><p align="center">考试</p></td>
<td width="60" height="20" class=td_biaogexian><p align="center">&nbsp;</p></td>
</TR>
</table><INPUT TYPE="button" value="提取" onclick="show()">
<SCRIPT LANGUAGE="JavaScript">
<!--
    var arrScore = new Array();
    var arrScore1 = new Array();
    function show(){
    var otbl = document.getElementsByTagName("table")[0];//那就把这改下 不用id直接去如果是第一个表格就0第二个就1
    var rows = otbl.rows;
        for(var i=1; i<rows.length; i++){
            arrScore.push(rows[i].cells[3].innerText);
            arrScore1.push(rows[i].cells[5].innerText);
        }
        alert("学分:"+arrScore);
        alert("成绩:"+arrScore1);
    }
//-->
</SCRIPT>

Answer 5

<h2 align="center"><font face="黑体" color="#ff0000">成绩易查询V2.5</font> <font face="黑体" color="#ff9900">以下结果由航标灯系统自动为您查询，航标灯网站不对其真实性负责。</font></h2>
  <table width="780" border="0" cellspacing="6" cellpadding="0" align="center">
  <tr>
    <td valign="top">
      <table width="100%" border="0" cellspacing="0" cellpadding="0" align="center">
        <tr>
          <td height="25" width="25">
            <div align="center"><img src="http://202.195.195.86:7777/zhxt_bks/images/b_01.gif" width="16" height="16"></div>
          </td>
          <td width="763" class=font_bt_sz>学生综合查询</td>
        </tr>
      </table>     <BR>
<P>
<OL>
<LI>下面列出所有课程的成绩，选中某门课程，按最下端的显示排名按钮，可计算成绩排名。
<LI>计算排名的时间会稍长一些，选择排名的课程不要超过20门。
</OL>
<P>
<CENTER><table width="100%" border="0" cellspacing="0" cellpadding="0" class=table_biankuan>
      <tr>
       <td  valign="top">
<table width="100%" border="0" cellspacing="0" cellpadding="0" class=table_biaogexian>
         <tr bgcolor="#FFFFFF">
            <td height="25" align="center" class=td_bt_bj>本学期课程成绩表</td>
         </tr>
        </TABLE>
 
<table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#F2EDF8">
<tr bgcolor="#EAE2F3"><td  height="25"  class=td_hz_bj><p align="center">课程号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">课程名</p></td>
<td  height="25"  class=td_hz_bj><p align="center">课序号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">学分</p></td>
<td  height="25"  class=td_hz_bj><p align="center">考试时间</p></td>
<td  height="25"  class=td_hz_bj><p align="center">总成绩</p></td>
<td  height="25"  class=td_hz_bj><p align="center">课程属性</p></td>
<td  height="25"  class=td_hz_bj><p align="center">替代课程号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">考试类型</p></td>
<td  height="25"  class=td_hz_bj><p align="center">备注</p></td>
</tr>
</table>
</td>
</tr>
</table>
<br></CENTER>
</td></tr></table>
  <table width="780" border="0" cellspacing="6" cellpadding="0" align="center">
  <tr>
    <td valign="top">
      <table width="100%" border="0" cellspacing="0" cellpadding="0" align="center">
        <tr>
          <td height="25" width="25">
            <div align="center"><img src="http://202.195.195.86:7777/zhxt_bks/images/b_01.gif" width="16" height="16"></div>
          </td>
          <td width="763" class=font_bt_sz>学生综合查询</td>
        </tr>
      </table>     
<table width="100%" border="0" cellspacing="0" cellpadding="0" class=table_biankuan>
      <tr>
       <td  valign="top">
<table width="100%" border="0" cellspacing="0" cellpadding="0" class=table_biaogexian>
         <tr bgcolor="#FFFFFF">
            <td height="25" align="center" class=td_bt_bj>必修课成绩表</td>
         </tr>
        </TABLE>
 
<table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#F2EDF8">
<tr bgcolor="#EAE2F3">
<td  height="25"  class=td_hz_bj><p align="center">课程号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">课程名</p></td>
<td  height="25"  class=td_hz_bj><p align="center">序号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">学分</p></td>
<td  height="25"  class=td_hz_bj><p align="center">考试时间</p></td>
<td  height="25"  class=td_hz_bj><p align="center">总成绩</p></td>
<td  height="25"  class=td_hz_bj><p align="center">替代课程号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">考试类型</p></td>
<td  height="25"  class=td_hz_bj><p align="center">备注</p></td>
<TR>
<td width="60" height="20" class=td_biaogexian><p align="center">04030071b</p></td>
<td width="200" height="20" class=td_biaogexian><p align="center">基础会计学(B)</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">3</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">3</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">20080715</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">优</p></td>
<td width="60" height="20" class=td_biaogexian><p align="center"></p></td>
<td width="60" height="20" class=td_biaogexian><p align="center">考查</p></td>
<td width="60" height="20" class=td_biaogexian><p align="center">&nbsp;</p></td>
</TR>
</TABLE>
<P>
<B>必修课总学分：</B>
95
</td></tr></table></td></tr></table>
  <table width="780" border="0" cellspacing="6" cellpadding="0" align="center">
    <tr><td valign="top">
     
<table width="100%" border="0" cellspacing="0" cellpadding="0" class=table_biankuan>
      <tr>
       <td  valign="top">
<table width="100%" border="0" cellspacing="0" cellpadding="0" class=table_biaogexian>
         <tr bgcolor="#FFFFFF">
            <td height="25" align="center" class=td_bt_bj>限选课成绩表</td>
         </tr>
        </TABLE>
 
<table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#F2EDF8">
<td  height="25"  class=td_hz_bj><p align="center">课程号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">课程名</p></td>
<td  height="25"  class=td_hz_bj><p align="center">序号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">学分</p></td>
<td  height="25"  class=td_hz_bj><p align="center">考试时间</p></td>
<td  height="25"  class=td_hz_bj><p align="center">总成绩</p></td>
<td  height="25"  class=td_hz_bj><p align="center">替代课程号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">考试类型</p></td>
<td  height="25"  class=td_hz_bj><p align="center">备注</p></td>
</TABLE>
<P>
<B>限选课总学分：</B>
1.5
</td></tr></table></td></tr></table>
  <table width="780" border="0" cellspacing="6" cellpadding="0" align="center">
    <tr><td valign="top">
     
<table width="100%" border="0" cellspacing="0" cellpadding="0" class=table_biankuan>
      <tr>
       <td  valign="top">
<table width="100%" border="0" cellspacing="0" cellpadding="0" class=table_biaogexian>
         <tr bgcolor="#FFFFFF">
            <td height="25" align="center" class=td_bt_bj>任选课成绩表</td>
         </tr>
        </TABLE>
 
<table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#F2EDF8">
<td  height="25"  class=td_hz_bj><p align="center">课程号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">课程名</p></td>
<td  height="25"  class=td_hz_bj><p align="center">序号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">学分</p></td>
<td  height="25"  class=td_hz_bj><p align="center">考试时间</p></td>
<td  height="25"  class=td_hz_bj><p align="center">总成绩</p></td>
<td  height="25"  class=td_hz_bj><p align="center">替代课程号</p></td>
<td  height="25"  class=td_hz_bj><p align="center">考试类型</p></td>
<td  height="25"  class=td_hz_bj><p align="center">备注</p></td>
<TR>
<td width="60" height="20" class=td_biaogexian><p align="center">09006030b</p></td>
<td width="200" height="20" class=td_biaogexian><p align="center">中国考古学(公基课人文二类)</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">0</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">1.5</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">20080715</p></td>
<td width="40" height="20" class=td_biaogexian><p align="center">85</p></td>
<td width="60" height="20" class=td_biaogexian><p align="center"></p></td>
<td width="60" height="20" class=td_biaogexian><p align="center">考查</p></td>
<td width="60" height="20" class=td_biaogexian><p align="center">&nbsp;公基课限选(人文二类)</p></td>
</TR>
</TABLE>
<BR>
<B>任选课总学分：</B>
4.5
</td></tr></table></td></tr></table>
具体的页面代码是这样的,麻烦大虾了~~~~~~~~~~~~~~~

Answer 6

<SCRIPT LANGUAGE="JavaScript">
<!--
    var arrScore = new Array();
    var arrScore1 = new Array();
var rows = 0;
    var otbl = document.getElementsByTagName("table");

for(var j=0;j<otbl.length;j++){
if(otbl[j].style.bgcolor="#F2EDF8"){
rows = otbl[j].rows;
//alert(rows.length)
for(var i=1; i<rows.length; i++){
arrScore.push(rows[i].cells[3].innerText);
arrScore1.push(rows[i].cells[5].innerText);
}
} }
        alert("学分:"+arrScore);
        alert("成绩:"+arrScore1);
//-->
</SCRIPT>

Answer 7

<SCRIPT LANGUAGE="JavaScript">
<!--
    var arrScore = new Array();
    var arrScore1 = new Array();
    var rows = 0;
    var otbl = document.getElementsByTagName("table");
    
    for(var j=0;j<otbl.length;j++){
        if(otbl[j].style.bgcolor="#F2EDF8"){
            rows = otbl[j].rows;
            //alert(rows.length)
                for(var i=1; i<rows.length; i++){
                    arrScore.push(rows[i].cells[3].innerText);
                    arrScore1.push(rows[i].cells[5].innerText);
                }
            }        }
        alert("学分:"+arrScore);
        alert("成绩:"+arrScore1);
//-->
</SCRIPT>