js控制table合并具体实现

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我是靠谱客的博主稳重墨镜，最近开发中收集的这篇文章主要介绍js控制table合并具体实现，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

复制代码代码如下:

 
<!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> 
</head> 

<body> 
<table width="100%" border="1" cellspacing="0" cellpadding="0" id="tab"> 
<tr> 
<td rowspan="0">张三 </td> 
<td>男 </td> 
<td>22 </td> 
<td>数学 </td> 
<td>90 </td> 
</tr> 
<tr> 
<td rowspan="0">张三 </td> 
<td>男 </td> 
<td>22 </td> 
<td>数学 </td> 
<td>90 </td> 
</tr> 
<tr> 
<td rowspan="0">张三 </td> 
<td>女 </td> 
<td>22 </td> 
<td>语文 </td> 
<td>70 </td> 
</tr> 
<tr> 
<td rowspan="0">张三 </td> 
<td>女 </td> 
<td>22 </td> 
<td>英语 </td> 
<td>60 </td> 
</tr> 
<tr> 
<td rowspan="0">李四 </td> 
<td>女 </td> 
<td>22 </td> 
<td>数学 </td> 
<td>60 </td> 
</tr> 
<tr> 
<td rowspan="0">李四 </td> 
<td>女 </td> 
<td>19 </td> 
<td>语文 </td> 
<td>60 </td> 
</tr> 
<tr> 
<td rowspan="0">王五 </td> 
<td>男 </td> 
<td>19 </td> 
<td>英语 </td> 
<td>60 </td> 
</tr> 
</table> 

<script type="text/javascript"> 
window.onload = function(){ 
var tab = document.getElementById("tab"); 
var col =0; 

megercell(tab, col); 

megercell1(tab, col+1); 

for(var i=0; i<tab.rows.length; i++){ 
// alert(tab.rows[i].cells[0].getAttribute("rowspan")); 
} 
}; 


function megercell(tab, col){ 
count = 1; 
val = ""; 
for(var i=0; i<tab.rows.length; i++){ 
if(val == tab.rows[i].cells[col].innerHTML){ 
count++; 
}else{ 
if(count > 1){ 
from = i - count; 

tab.rows[from].cells[col].rowSpan = count; 
for(var j=from+1; j<i; j++){ 
tab.rows[j].cells[col].style.display = "none"; 
} 
count = 1; 
} 
val = tab.rows[i].cells[col].innerHTML; 
} 
} 
} 

function megercell1(tab, col){ 
count = 1; 
val = ""; 
var rowspan = 0; 
for(var i=0; i<tab.rows.length;){ 
rowspan = parseInt(tab.rows[i].cells[0].getAttribute("rowspan")); 

if(rowspan) 
{ 
for(var n = 0; n < rowspan; n++) 
{ 
if(val == tab.rows[i].cells[col].innerHTML){ 
count++; 
}else{ 
if(count > 1){ 
from = i - count; 
tab.rows[from].cells[col].rowSpan = count; 
for(var j=from+1; j<i; j++){ 
tab.rows[j].cells[col].style.display = "none"; 
} 
count = 1; 
} 
val = tab.rows[i].cells[col].innerHTML; 
} 
i++; 
} 
if(count　> 1) 
{ 
from = i - count; 

alert(from +" "+ i +" "+ count); 
tab.rows[from].cells[col].rowSpan = count; 
for(var j=from+1; j<i; j++){ 
tab.rows[j].cells[col].style.display = "none"; 
} 
} 
count = 1; 
val = ""; 
} 
else 
{ 
i++; 
} 
} 
} 

</script> 
</body> 
</html> 