<!DOCTYPE html><html><head><title> new document </title> ?<meta http-equiv="Content-Type" content="text/html; charset=gbk"/> ?<script type="text/javascript"> ? window.onload = function(){ Highlight(); } function addOne(obj){ var tbody = document.getElementById('table').lastChild; var tr = document.createElement('tr'); var td = document.createElement("td"); td.innerHTML = "<input type='text'/>"; tr.appendChild(td); td = document.createElement("td");
td.innerHTML = "<input type='text'/>"; tr.appendChild(td); td = document.createElement("td");
td.innerHTML = "<a href='javascript:;' onclick='deleteRow(this)'>刪除</a>"; tr.appendChild(td); tbody.appendChild(tr); Highlight();? } function deleteRow(obj){ var tbody = document.getElementById('table').lastChild; var tr = obj.parentNode.parentNode; tbody.removeChild(tr); } function Highlight(){ var tbody = document.getElementById('table').lastChild;
trs = tbody.getElementsByTagName('tr'); for(var i =1;i<trs.length;i++){ trs[i].onmouseover = function(){ this.style.backgroundColor ="#f2f2f2"; } trs[i].onmouseout = function(){ this.style.backgroundColor ="#fff"; } } }</script> </head> <body> <table border="1" width="50%" id="table"> <tr> <th>學(xué)號</th> <th>姓名</th> <th>操作</th> </tr> ? <tr> <td>xh001</td> <td>王小明</td> <td><a href="javascript:;" onclick="deleteRow(this)">刪除</a></td> </tr> <tr> <td>xh002</td> <td>劉小芳</td> <td><a href="javascript:;" onclick="deleteRow(this)">刪除</a></td> </tr> ? </table> <input type="button" value="添加一行" onclick="addOne()" /></body></html>
為何用這個獲取 var tbody = document.getElementById('table').lastChild;
深山小童
2016-04-10 20:22:38