JS怎样使用appendChild 给table 增加tr td

insertRow（）函数可以带参数，形式如下：这个函数将新行添加到index的那一行前，比如insertRow（0），是将新行添加到第一行之前，默认的insertRow（）函数相当于insertRow（－1），将新行添加到表的最后。

<scriptlanguage="JavaScript">

vart＝document．getElementById（＂test＂）；

t.innerHTML="<tr><td>数据</td></tr>"

／／或者

vart＝document．getElementById（＂test＂）；

vartr＝document．createElement（＂tr＂）；

vartd＝doucment．createElement（＂td＂）；

td．innerHTML＝＂数据＂；

tr．appendChild（td）；

t．appendChild（tr）；

｝

</script>

扩展资料：

给table添加一行

1、＄（＂＃addTable＂）．click（function（）｛；

2、vartr="<tr>"+；

3、"<td>11</td>"+；

4、"<td>22</td>"+；

5、"<td>33</td>"+；

6、"<td>44</td>"+；

7、"<td>55</td>"+；

8、"</tr>"

9、＄（＂．layui－table＂）．append（tr）；

两个insert方法返回的就是被插入的对象,直接 *** 作这两个对象就行了。

var tr = table.insertRow()var td = tr.insertCell()tr.setAttribute('align','center') '不用setAttribute而直接使用属性也可以.tr.setAttribute('bgcolor','#FF0000')

td.width=100  直接对属性赋值的作法。

要在tr元素的父元素中才能增加行，不能在tr本身去增加行。而tbody就是tr的父元素。如果是增加td，就要用tr，因为tr是td的父元素。

<script>// Last updated 2006-02-21 function addRowToTable() { var tbl = document.getElementById('tblSample')var lastRow = tbl.rows.length。

// if there's no header row in the table, then iteration = lastRow + 1

var iteration = lastRow。

var row = tbl.insertRow(lastRow)// left cell var cellLeft = row.insertCell(0)var textNode = document.createTextNode(iteration)cellLeft.appendChild(textNode)

// right cell var cellRight = row.insertCell。

var el = document.createElement('input')el.type = 'text'el.name = 'txtRow' + iterationel.id = 'txtRow' + iterationel.size = 40。

el.onkeypress = keyPressTestcellRight.appendChild(el)。

给你个简单的示例吧\x0d\x0a\x0d\x0a\x0d\x0a0\x0d\x0a1在此行下插入新行\x0d\x0a 2\x0d\x0a

\x0d\x0a\x0d\x0a\x0d\x0afunctioninstTR(){\x0d\x0avartab=document.getElementById('tab')\x0d\x0avarn=document.getElementById('x').rowIndex+1\x0d\x0avartr=tab.insertRow(n)\x0d\x0avartd=tr.insertCell(0)\x0d\x0atd.innerHTML='new'+Math.random()\x0d\x0a}\x0d\x0a\x0d\x0a 回答于 2022-12-14 抢首赞 已踩 0 查看全部1个回答 — 为你推荐更多精彩内容 — 正在加载 加载失败 点击重新加载

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