<!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)'>删除</a>"; tr.appendChild(td); tbody.appendChild(tr); Highlight(); } function deleteRow(obj){ var tbody = document.getElementById('table').lastChild; var tr = obj.parentNode.parentNode; ///////////////这里 为什么要这样写呢？ 看不懂 tbody.removeChild(tr); } function Highlight(){ var tbody = document.getElementById('table').lastChild; trs = tbody.getElementsByTagName('tr'); //获取表格的 每行 alert(trs.length); 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>学号</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)">删除</a></td> </tr> <tr> <td>xh002</td> <td>刘小芳</td> <td><a href="javascript:;" onclick="deleteRow(this)">删除</a></td> </tr> </table> <input type="button" value="添加一行" onclick="addOne()" /> </body></html>
1 回答
慕运维2284031
TA贡献11条经验 获得超2个赞
调用删除方法时 传入的是a标签 如果直接用removechild删除的是a标签 此时还保留其他的td 获取a的父级td 再获取td的父级tr 此时删除就把整行删除了
添加回答
举报
0/150
提交
取消