合并单元格
<!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>无标题文档 </title> </head> <body> <table width="100%" border="1" cellspacing="0" cellpadding="0" id="tab"> <tr> <td>张三 </td> <td>男 </td> <td>22 </td> <td>数学 </td> <td>90 </td> </tr> <tr> <td>张三 </td> <td>男 </td> <td>22 </td> <td>数学 </td> <td>90 </td> </tr> <tr> <td>张三 </td> <td>男 </td> <td>22 </td> <td>语文 </td> <td>70 </td> </tr> <tr> <td>张三 </td> <td>女 </td> <td>22 </td> <td>英语 </td> <td>60 </td> </tr> <tr> <td>李四 </td> <td>女 </td> <td>22 </td> <td>数学 </td> <td>60 </td> </tr> <tr> <td>李四 </td> <td>女 </td> <td>19 </td> <td>语文 </td> <td>60 </td> </tr> <tr> <td>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.getElementByIdx_x_x("tab"); var maxCol = 3, val, count, start;//maxCol：合并单元格作用到多少列 for(var col = maxCol-1; col >= 0 ; col--){ count = 1; val = ""; for(var i=0; i<tab.rows.length; i++){ if(val == tab.rows.cells.innerHTML){ count++; }else{ if(count > 1){ //合并 start = i - count; tab.rows.cells.rowSpan = count; for(var j=start+1; j<i; j++){ tab.rows.cells.style.display = "none"; } count = 1; } val = tab.rows.cells.innerHTML; } } if(count > 1 ){ //合并，最后几行相同的情况下 start = i - count; tab.rows.cells.rowSpan = count; for(var j=start+1; j<i; j++){ tab.rows.cells.style.display = "none"; } } }};</script></body> </html>
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