JavaScript动态操作表格，添加，删除行、列及单元格
<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>js动态操作表格</title><script language="javascript"> function init(){ _table=document.getElementById("table"); _table.border="1px"; _table.width="800px"; for(var i=1;i<6;i++){ var row=document.createElement("tr"); row.id=i; for(var j=1;j<6;j++){ var cell=document.createElement("td"); cell.id=i+"/"+j; cell.appendChild(document.createTextNode("第"+cell.id+"列")); row.appendChild(cell); } document.getElementById("newbody").appendChild(row); } } function rebulid(){ var beginRow=document.getElementById("beginRow").value;/*开始行*/var endRow=document.getElementById("endRow").value;/*结束行*/var beginCol=document.getElementById("beginCol").value;/*开始列*/var endCol=document.getElementById("endCol").value;/*结束列*/var tempCol=beginRow+"/"+beginCol;/*定位要改变属性的列*/alert(tempCol);var td=document.getElementById(tempCol);for(var x=beginRow;x<=endRow;x++){for(var i=beginCol;i<=endCol;i++){ if(x==beginRow){document.getElementById("table").rows[x].deleteCell(i+1); } else{ document.getElementById("table").rows[x].deleteCell(i); } }}td.rowSpan=(endRow-beginRow)+1;} /*添加行，使用appendChild方法*/ function addRow(){ var length=document.getElementById("table").rows.length; /*document.getElementById("newbody").insertRow(length); document.getElementById(length+1).setAttribute("id",length+2);*/ var tr=document.createElement("tr"); tr.id=length+1; var td=document.createElement("td"); for(i=1;i<4;i++){ td.id=tr.id+"/"+i;td.appendChild(document.createTextNode("第"+td.id+"列"));tr.appendChild(td); } document.getElementById("newbody").appendChild(tr); } function addRow_withInsert(){ var row=document.getElementById("table").insertRow(document.getElementById("table").rows.length);var rowCount=document.getElementById("table").rows.length;var countCell=document.getElementById("table").rows.item(0).cells.length; for(var i=0;i<countCell;i++){ var cell=row.insertCell(i); cell.innerHTML="新"+(rowCount)+"/"+(i+1)+"列"; cell.id=(rowCount)+"/"+(i+1); } } /*删除行，采用deleteRow(row Index)*/ function removeRow(){ document.getElementById("newbody").deleteRow(document.getElementById(document.getElementById("table").rows.length).rowIndex); } /*添加列，采用insertCell(列位置)方法*/ function addCell(){ /*document.getElementById("table").rows.item(0).cells.length 用来获得表格的列数 */ for(var i=0;i<document.getElementById("table").rows.length;i++){var cell=document.getElementById("table").rows[i].insertCell(2);cell.innerHTML="第"+(i+1)+"/"+3+"列";} } /*删除列，采用deleteCell(列位置)的方法*/ function removeCell(){for(var i=0;i<document.getElementById("table").rows.length;i++){document.getElementById("table").rows[i].deleteCell(0);}}</script></head><body onLoad="init();"> <table id="table" align="center"> <tbody id="newbody"></tbody> </table> <div> <table width="800px" border="1px" align="center"><tr><td align="center"><input type="button" id="addRow" name="addRow" onClick="addRow();" value="添加行"/></td><td align="center"><input type="button" id="delRow" name="delRow" onClick="removeRow();" value="删除行"/></td></tr> <tr><td align="center"><input type="button" id="delCell" name="delCell" onClick="removeCell();" value="删除列"/></td><td align="center"><input type="button" id="addCell" name="addCell" onClick=" addCell();" value="添加列"/></td></tr> <tr><td align="center" colspan="2"><input type="button" id="addRows" name="addRows" onClick="addRow_withInsert();" value="添加行"/></td></tr></table> </div> <div> <table width="800px" border="1px" align="center"><tr><td>从第<input type="text" id="beginRow" name="beginRow" value=""/>行到<input type="text" name="endRow" id="endRow" value=""/>行</td><td rowspan="2" id="test"><input type="button" name="hebing" id="hebing" value="合并" onClick="rebulid();"/></td></tr> <tr><td>从第<input type="text" name="beginCol" id="beginCol" value=""/>列到<input type="text" name="endCol" id="endCol" value=""/>列</td></tr></table> </div></body></html>?