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    <span style="font-family: Times New Roman;">[size=18px;]<html> <br>
<head> <br>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <br>
<title>合并表格</title> <br>
<script> <br>
/////////////////////////////////////////////// <br>
//功能:合并表格 <br>
//参数:tb-需要合并的表格ID <br>
//参数:colLength--需要对前几列进行合并,比如, <br>
//想合并前两列,后面的数据列忽略合并,colLength应为2 <br>
//缺省表示对全部列合并 <br>
//data:2011.11.06 <br>
/////////////////////////////////////////////// <br>
function uniteTable(tb,colLength){ <br>
//检查表格是否规整 <br>
if(!checkTable(tb)) return; <br>
var i=0; <br>
var j=0; <br>
var rowCount=tb.rows.length; //行数 <br>
var colCount=tb.rows[0].cells.length; //列数 <br>
var obj1=null; <br>
var obj2=null; <br>
//为每个单元格命名 <br>
for(i=0;i<rowCount;i++){ <br>
for(j=0;j<colCount;j++){ <br>
tb.rows[i].cells[j].id="tb__" + i.toString() + "_" + j.toString(); <br>
} <br>
} <br>
//逐列检查合并 <br>
for(i=0;i<colCount;i++){ <br>
if(i==colLength) return; <br>
obj1=document.getElementById("tb__0_"+i.toString()) <br>
for(j=1;j<rowCount;j++){ <br>
obj2=document.getElementById("tb__"+j.toString()+"_"+i.toString()); <br>
if(obj1.innerText==obj2.innerText){ <br>
obj1.rowSpan++; <br>
obj2.parentNode.removeChild(obj2); <br>
}else{ <br>
obj1=document.getElementById("tb__"+j.toString()+"_"+i.toString()); <br>
} <br>
} <br>
} <br>
} <br><br>
///////////////////////////////////////// <br>
//功能:检查表格是否规整 <br>
//参数:tb--需要检查的表格ID <br>
//data: 2011.11.06<br>
///////////////////////////////////////// <br>
function checkTable(tb){ <br>
if(tb.rows.length==0) return false; <br>
if(tb.rows[0].cells.length==0) return false; <br>
for(var i=0;i<tb.rows.length;i++){ <br>
if(tb.rows[0].cells.length!=tb.rows[i].cells.length) return false; <br>
} <br>
return true; <br>
} <br>
</script> <br>
</head> <br>
<body> <br>
<table width="400" border="1" id="table1"> <br>
<tr> <br>
<td>a</td> <br>
<td>for</td> <br>
<td>100</td> <br>
<td>200</td><br>
<td>1</td> <br>
</tr> <br>
<tr> <br>
<td>a</td> <br>
<td>for</td> <br>
<td>100</td> <br>
<td>300</td> <br>
<td>2</td> <br>
</tr> <br>
<tr> <br>
<td>a</td> <br>
<td>if</td> <br>
<td>100</td> <br>
<td>200</td> <br>
<td>3</td> <br>
</tr> <br>
<tr> <br>
<td>a</td> <br>
<td>if</td> <br>
<td>300</td> <br>
<td>230</td> <br>
<td>4</td> <br>
</tr> <br>
<tr> <br>
<td>a</td> <br>
<td>if</td> <br>
<td>320</td> <br>
<td>230</td> <br>
<td>5</td> <br>
</tr> <br>
</table> <br>
<br><input type="button" value="合并表格" onClick="uniteTable(table1,4)"> <br>
</body> <br>
</html>[/size] </span>
 
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