<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk" />
<title>无标题文档</title>
<script type="text/javascript">
var index = 3;
function btnAddRow(){
var rId = "tr" + index;
var ranPrice = "¥" + Math.round((Math.random() * 100));
var table1 = document.getElementById("table1");
var rowCount = table1.rows.length;
var newRow = table1.insertRow(rowCount);
newRow.id = rId;
var newCell1 = newRow.insertCell(0);
newCell1.innerHTML = "西游记"+index;
var newCell2 = newRow.insertCell(1);
newCell2.innerHTML = ranPrice;
var newCell3 = newRow.insertCell(2);
newCell3.innerHTML = "<input type='button' name='button' id='button' value='删除' />";
index ++;
}
</script>
</head>
<body>
<table id="table1" width="500" border="1" cellspacing="1" cellpadding="1">
<tr id="tr0">
<td>书名</td>
<td>价格</td>
<td>操作</td>
</tr>
<tr id="tr1">
<td>三国演义</td>
<td>¥99</td>
<td>
<input type="button" name="button" id="button" value="删除" /> </td>
</tr>
<tr id="tr2">
<td>水浒传</td>
<td>¥100</td>
<td><input type="button" name="button2" id="button2" value="删除" /></td>
</tr>
</table>
<p>
<input type="button" name="button3" id="button3" value="新增一行" onclick="btnAddRow()" />
</p>
</body>
</html>