JavaScript traverses a certain row and column in the table and prints its value

JavaScript traverses a certain row and column in the table and prints its value_javascript skills

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Release： 2016-05-16 16:42:13

Original

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JavaScript traverse table

1. Description

Traverse a certain row and column in the table and print its value

2. Implement source code

<!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=utf-8" /> 
<title>JavaScript遍历table</title> 
<style type="text/css"> 
tr td,tr th{ 
border:#CCC 1px solid; 
} 
</style> 
<script type="text/javascript"> 
/** 
* JavaScript遍历table 
*/ 
function eachTableRow() 
{ 
//获取table序号 
var tab=document.getElementById("tab"); 
//获取行数 
var rows=tab.rows; 
//遍历行 
for(var i=1;i<rows.length;i++) 
{ 
//遍历表格列 
for(var j=0;j<rows[i].cells.length;j++) 
{ 
//打印某行某列的值 
alert("第"+(i+1)+"行，第"+(j+1)+"列的值是:"+rows[i].cells[j].innerHTML); 
} 
} 
} 
</script> 
</head> 

<body> 
<table id="tab" cellpadding="0" cellspacing="0" style="width:50%; text-align:center; border:#CCC 1px solid;"> 
<tr style="border:#CCC 1px solid;"> 
<th>学号</th> 
<th>姓名</th> 
<th>年龄</th> 
<th>性别</th> 
</tr> 
<tr> 
<td>2014010101</td> 
<td>张思思</td> 
<td>20</td> 
<td>女</td> 
</tr> 
<tr> 
<td>2014010102</td> 
<td>立三</td> 
<td>21</td> 
<td>男</td> 
</tr> 
<tr> 
<td>2014010103</td> 
<td>王玉</td> 
<td>22</td> 
<td>女</td> 
</tr> 
<tr> 
<td>2014010104</td> 
<td>朱莉</td> 
<td>23</td> 
<td>男</td> 
</tr> 
</table> 
<input type="button" value="遍历" onclick="eachTableRow()"/> 
</body> 
</html>

Copy after login

3. Realize results

(1) During initialization

(2) Click "Traverse"

(3) Click "Traverse" again