用javascript对网页中两个表格内容逐项比对
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<html>
<head>
<title>文档</title>
<style type="text/css">
body{
width:100%;
}
table{
width:100%;
margin-top:20px;
}
input{
width:100px;
height:30px;
}
</style>
<script type="text/javascript">
/**
在两个表格结构相同的情况下：
设表1的ID，也就是table标签的ID为“table1”;
表2的ID为table2;
**/
function testTable(){
var t1 = document.getElementById('table1');
var t2 = document.getElementById('table2');
var tRows = t1.rows.length;
var tCells = t1.rows[1].cells.length;
for(var i=1; i<tRows; i++){
for(var p=0; p<tCells; p++){
if(t1.rows[i].cells[p].innerHTML != t2.rows[i].cells[p].innerHTML){
t2.rows[i].cells[p].style.backgroundColor = '#F00';
}
}
}
}
</script>
</head>
<body>
<table border="1" cellspacing="0" cellpadding="0" id="table1">
<tr>
<th colspan="3">表头</th>
</tr>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
</tr>
<tr>
<td>4</td>
<td>5</td>
<td>6</td>
</tr>
</table>
<table border="1" cellspacing="0" cellpadding="0" id="table2">
<tr>
<th colspan="3">表头</th>
</tr>
<tr>
<td>1</td>
<td>3</td>
<td>3</td>
</tr>
<tr>
<td>4</td>
<td>5</td>
<td>8</td>
</tr>
</table>
<input type="button" value="检测" onClick="testTable()" />
</body>
</html>
