想在一个表格里面特定的tr后面增加一行，用javascript应该如何做？_IT百科

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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(window.__IKNOW_GLOBAL__ || window).require require.async(['m-common:widget/lib/gmu/zepto/zepto'], function ($) { var list = ['fr=hero'] list.forEach(function (item) { var isShow = location.search.includes(item) if (isShow) { $('.history-back-btn-left-bottom').css({ display: 'flex', }) } }) $('.history-back-btn-left-bottom').click(function () { history.back() }) }) }() !function(){var F = (window.__IKNOW_GLOBAL__ || window).Fvar require = (window.__IKNOW_GLOBAL__ || window).require F.context('singleReply', '4208695586') F.context('isLightTheme', 1) F.context('singleImport', 1580) F.context('pvid', '2939349764') F.context('singleUid', '7d074069236f25705e795ccc') F.context('businessId', '96182') // 知识头条是否内容制作包 F.context('knowledgeCardType', 0) F.context('isPartnerHosting', 0) F.context('hostedContentFrom', '') require.async(['m-common:widget/js/util/log/log'], function (log) { log.addKey({ rid: '4208695586', pinzhuanFlag: 0, typeSqbFlag: 0, isPartnerHosting: 0, hostedContentFrom: '', businessId: 96182 }) log.send({ action: 'pv', area: 'pv', }) }) require.async(["m-question-new:widget/js/page/index"]) require.async(["m-question-new:widget/js/page/single.es"], function (single) { single.init({ videoCount: 0, rid: '4208695586', answerIsBusiness: 96182 }) }) }() !function(){var F = (window.__IKNOW_GLOBAL__ || window).Fvar require = (window.__IKNOW_GLOBAL__ || window).require require.async(['m-question-new:widget/comment-layer/comment-layer.es'], function (comment) { comment.init({ rid: '4208695586' }) }) }() !function(){var F = (window.__IKNOW_GLOBAL__ || window).Fvar require = (window.__IKNOW_GLOBAL__ || window).require require.async(["m-question-new:widget/gotop/gotop"],function(gotop){ gotop.init('#w-gotop') }) }() !function(){var F = (window.__IKNOW_GLOBAL__ || window).Fvar require = (window.__IKNOW_GLOBAL__ || window).require require.async(["m-common:widget/js/logic/duration/duration"],function(dur){ // 手百中，如果document.referrer中含有xcx=\d+时，在此链接中添加xcx参数 var match = (document.referrer).match(/xcx=\d+/i) if (window.history && navigator.userAgent.match(/baiduboxapp/i) && match) { var hash = location.hash var search = location.search var joiner = search.indexOf('?') === -1 ? '?' : '&' window.history.replaceState(null, '', search + joiner + match[0] + hash) } dur.init({ uid: '' }) }) }() !function(){var F = (window.__IKNOW_GLOBAL__ || window).Fvar require = (window.__IKNOW_GLOBAL__ || window).require }() !function(){var F = (window.__IKNOW_GLOBAL__ || window).Fvar require = (window.__IKNOW_GLOBAL__ || window).require require.async(['m-common:widget/lib/gmu/zepto/zepto'], function($) { var businessIds = [96182] businessIds && businessIds instanceof Array && $.ajax({ url: '/business/submit/dailystatistics', type: 'GET', timeout: 30 * 1000, data: { type: 1, businessIds: businessIds.join('_'), qid: F.context('question').qid } }) }) }() !function(){var F = (window.__IKNOW_GLOBAL__ || window).Fvar require = (window.__IKNOW_GLOBAL__ || window).requirerequire.async(['m-question-new:widget/trans-yun/trans-yun-log'], function(YunLog){ YunLog.init() }) }() !function(){var F = (window.__IKNOW_GLOBAL__ || window).Fvar require = (window.__IKNOW_GLOBAL__ || window).requirerequire.async(['m-question-new:widget/yike-card/yike-card-log'], function(yikeCardLog){ yikeCardLog.init() }) }() !function(){var F = (window.__IKNOW_GLOBAL__ || window).Fvar require = (window.__IKNOW_GLOBAL__ || window).require require.async(['m-common:widget/pushStateQuery/pushStateQuery'], function (app) { app.init() }) }() !function(){var F = (window.__IKNOW_GLOBAL__ || window).Fvar require = (window.__IKNOW_GLOBAL__ || window).require require.async(['m-common:widget/js/util/monitor/monitor.es'], function(m) { window.iPerformance && m.monitor && m.monitor.init() }) }() !function(){var F = (window.__IKNOW_GLOBAL__ || window).Fvar require = (window.__IKNOW_GLOBAL__ || window).require require.async(['m-common:widget/js/util/log/log'], function(log) { var ssrEnd = Date.now() var cost = ssrEnd - Number(1681278539520) setTimeout(function () { log.send({ action: 'latency', area: 'ssr', plat: 'h5', cost: cost, uri: window.location.pathname }) }, 1000) }) }() if(typeof PDC!="undefined"){PDC.tti()} var _hmt = _hmt || [] (function() { var hm = document.createElement("script") hm.src = "//hm.baidu.com/hm.js?16bc67e4f6394c05d03992ea0a0e9123" var s = document.getElementsByTagName("script")[0] s.parentNode.insertBefore(hm, s) })() !function(document, window){ var log = { list: [], host: 'https://' + location.host + '/api/httpscheck', log: function(param) { var a = [] a.push('wap=1') for(var k in param) { a.push(k + '=' + param[k]) } var msg = a.join('&') if(~this.list.indexOf(msg)){ return } this.list.push(msg) var img = new Image() var key = '_ik_log_' + (Math.random()*2147483648 ^ 0).toString(36) window[key] = img img.onload = img.onerror = img.onabort = function() { img.onload = img.onerror = img.onabort = null window[key] = null img = null } img.src = this.host + '?' + msg } } function HTTPSWarningLog(){ this.selector = [ 'link', 'script', 'img', 'embed', 'iframe' ] this.warningCounter = 0 this.init() } HTTPSWarningLog.prototype = { init: function(){ this.fetch() }, fetch: function(){ for(var tags = this.selector, i =0, len = tags.lengthi < leni++) { this.getTag(tags[i]) } }, getTag: function(tag) { var domList = document.getElementsByTagName(tag) if(!domList.length) { return } for(var i = 0,len = domList.lengthi

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）；

$('.addBtn').click(function(){

$("table").append("<tr>"+$("table tr:first").html()+'</tr>')

})

//上面写的虽然满足但是如果用户有输入的话连带着输入一起复制了，所以不推荐

function setTr(){

return '<tr>...</tr>'//把要添加的正好tr代码到这

}

$('.addBtn').click(function(){

$("table").append(setTr)

})

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原文地址: http://outofmemory.cn/bake/11808548.html

想在一个表格里面特定的tr后面增加一行，用javascript应该如何做？

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