table对象insertRow deleteRow 使用实例

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<!DOCTYPE html><html>  <head>    <title>table1.html</title>    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">    <meta http-equiv="description" content="this is my page">    <meta http-equiv="content-type" content="text/html; charset=UTF-8">        <!--<link rel="stylesheet" type="text/css" href="./styles.css">--><script language = "javascript" type = "text/javascript"><!--function test1(){//判断插入的编号是否已经存在for(var i=0;i<mytable.rows.length;i++){var eachRow = mytable.rows[i];if(eachRow.cells[0].innerText == no.value){window.alert("编号已经存在！");return ;}}//获取表单中的数据var newTableRow = mytable.insertRow(mytable.rows.length);newTableRow.insertCell(0).innerText = no.value;newTableRow.insertCell(1).innerText = name1.value;newTableRow.insertCell(2).innerText = nickName.value;}function test2(){mytable.deleteRow(mytable.rows.length-1);}//--></script>  </head>    <body>    <h1>英雄排行榜</h1>    <table id = "mytable" border = "1">    <tr><td>排名</td><td>姓名</td><td>外号</td></tr>    <tr><td>1</td><td>宋江</td><td>及时雨</td></tr>    <tr><td>2</td><td>卢俊义</td><td>玉麒麟</td></tr>    </table>    <h1>请输入新的好汉</h1>    编号<input id = "no" type = "text" value = ""><br/>    名字<input id = "name1" type = "text" value = ""><br/>    外号<input id = "nickName" type = "text" value = ""><br/>    <input id = "tianjia" type = "button" value = "添加" onclick = "test1()">    <input type = "button" value = "删除最后一行" onclick = "test2()"/>  </body></html>

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table对象insertRow deleteRow 使用 实例

table对象insertRow deleteRow 使用实例