js控制table合并具体实现

前端技术 2023/09/08 JavaScript
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>

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