方法有好多了，二楼的也是一种还有其他方法，示例如下<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title> New Document </title> <meta name="Generator" content="EditPlus"> <meta name="Author" content=""> <meta name="Keywords" content=""> <meta name="Description" content=""> </head> <SCRIPT >function getValue(){ //取表格 var table1 = document.getElementById("table1");//方法1：var v1 = table1.firstChild.childNodes[2].childNodes[1].innerHTML;//方法2：var v2 = table1.getElementsByTagName("tr")[2].getElementsByTagName("td")[1].innerHTML; alert("方法1获取："+v1 ); alert("方法2获取："+v2 );}</SCRIPT> <body> <table width="200" border="1" id="table1"> <tr> <td>11</td> <td>12</td> </tr> <tr> <td>21</td> <td>22</td> </tr> <tr> <td>31</td> <td >第2列第3行</td> </tr> <tr> <td>41</td> <td>42</td> </tr></table><br><input type="button" value="第二列第三个单元格的内容" onClick='getValue()'> </body></html>
