如何获得表格的tr元素和当前行的行号 如题 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 <html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>新建网页 2</title><script>function window_onload(){ var t = document.getElementById("table1"); var rows = t.rows;//tr的数组 for(var i=0;i<rows.length;i++){ var row = rows[i]; var index = row.rowIndex; alert("第"+(i+1)+"行===>"+row.outerHTML); }}</script></head><body onload="window_onload()"><table border="1" width="100%" id="table1"> <tr> <td>1 </td> <td>1 </td> <td> 1</td> </tr> <tr> <td>2 </td> <td>2 </td> <td>2 </td> </tr> <tr> <td>3 </td> <td>3 </td> <td>3 </td> </tr></table></body></html> document.getElementById('table_id').getElementsByTagName('tr').length trObj.rowIndex <tr onclick="tiJiao(this.rowIndex)"> <tr onclick="alert(this.rowIndex)">这个直接显示 IE ONLY 你自己兼容......<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>新建网页 2</title><script defer>document.getElementById("table1").onclick = function(){ var e = event.srcElement; alert("您点选的是第" + [e.parentElement.rowIndex + 1] + "行,第" + [e.cellIndex + 1] + "列");}</script></head><body><table border="1" width="100%" id="table1"> <tr> <td>1 </td> <td>1 </td> <td> 1</td> </tr> <tr> <td>2 </td> <td>2 </td> <td>2 </td> </tr> <tr> <td>3 </td> <td>3 </td> <td>3 </td> </tr></table></body></html> <!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> <title>无标题页</title><script type="text/javascript">var mytable=null;window.onload=function(){mytable=new CTable("tbl",10); //随机创建10行表格}Array.prototype.each=function(f){ //数组的遍历for(var i=0;i<this.length;i++) f(this[i],i,this)}function $A(arrayLike){ //数值的填充for(var i=0,ret=[];i<arrayLike.length;i++) ret.push(arrayLike[i]);return ret}Function.prototype.bind = function() { //数据的绑定 var __method = this, args = $A(arguments), object = args.shift(); return function() { return __method.apply(object, args.concat($A(arguments))); }}function CTable(id,rows){this.tbl=typeof(id)=="string"?document.getElementById(id):id; if (rows && /^\d+$/.test(rows)) this.addrows(rows) //为表格添加行数}CTable.prototype={addrows:function(n){ //随机添加n行new Array(n).each(this.add.bind(this))},add:function(){ //添加1行var self=this;var tr = self.tbl.insertRow(-1),td1= tr.insertCell(-1),td2= tr.insertCell(-1),td3= tr.insertCell(-1);var chkbox=document.createElement("INPUT")chkbox.type="checkbox"chkbox.onclick=self.highlight.bind(self)td1.appendChild(chkbox) //第一列添加复选框td1.setAttribute("width","35")td2.innerHTML=Math.ceil(Math.random()*99) //第二列的随机填充值td3.innerHTML=Math.ceil(Math.random()*99) //第三列的随机填充值},del:function(){ //删除所选行var self=this$A(self.tbl.rows).each(function(tr){if (self.getChkBox(tr).checked) tr.parentNode.removeChild(tr)})},up:function(){ //上移所选行 var self=this var upOne=function(tr){ //上移1行 if (tr.rowIndex>0){ self.swapTr(tr,self.tbl.rows[tr.rowIndex-1]) self.getChkBox(tr).checked=true}} var arr=$A(self.tbl.rows).reverse() //反选 if (arr.length>0 && self.getChkBox(arr[arr.length-1]).checked){ for(var i=arr.length-1;i>=0;i--){ if (self.getChkBox(arr[i]).checked){ arr.pop() }else{ break}}} arr.reverse().each(function(tr){if (self.getChkBox(tr).checked) upOne(tr)});},down:function(){ //下移所选行 var self=this var downOne=function(tr){ if (tr.rowIndex<self.tbl.rows.length-1) { self.swapTr(tr,self.tbl.rows[tr.rowIndex+1]); self.getChkBox(tr).checked=true; }} var arr=$A(self.tbl.rows) if (arr.length>0 && self.getChkBox(arr[arr.length-1]).checked){ for(var i=arr.length-1;i>=0;i--){ if (self.getChkBox(arr[i]).checked){ arr.pop() }else{ break}} } arr.reverse().each(function(tr){if (self.getChkBox(tr).checked) downOne(tr)});},sort:function(){ //排序 var self=this,order=arguments[0];var sortBy=function(a,b){if (typeof(order)=="number"){ //数字,则按数字指示的列排序return Number(a.cells[order].innerHTML)>=Number(b.cells[order].innerHTML)?1:-1; //转化为数字类型比较大小}else if (typeof(order)=="function"){ //返回结果排序return order(a,b);}else{return 1;}}$A(self.tbl.rows).sort(sortBy).each(function(x){var checkStatus=self.getChkBox(x).checked;self.tbl.firstChild.appendChild(x);if (checkStatus) self.getChkBox(x).checked=checkStatus;});},rnd:function(){ //随即选择几行数据var self=this,selmax=0,tbl=self.tbl;if (tbl.rows.length){ selmax=Math.max(Math.ceil(tbl.rows.length/4),1); //选择的行数不超过tr数的1/4 $A(tbl.rows).each(function(x){self.getChkBox(x).checked=false;self.restoreBgColor(x)})}else{return alert("无数据可以选")}new Array(selmax).each(function(){var tr=tbl.rows[Math.floor(Math.random()*tbl.rows.length)]self.getChkBox(tr).checked=true;self.highlight({target:self.getChkBox(tr)})})},highlight:function(){ //设置行的背景色var self=this;var evt=arguments[0] || window.eventvar chkbox=evt.srcElement || evt.targetvar tr=chkbox.parentNode.parentNodechkbox.checked?self.setBgColor(tr):self.restoreBgColor(tr)},swapTr:function(tr1,tr2){ //交换tr1和tr2的位置var target=(tr1.rowIndex<tr2.rowIndex)?tr2.nextSibling:tr2;var tBody=tr1.parentNodetBody.replaceChild(tr2,tr1); tBody.insertBefore(tr1,target);},getChkBox:function(tr){ //从tr得到 checkbox对象return tr.cells[0].firstChild},restoreBgColor:function(tr){ tr.style.backgroundColor="#ffffff" },setBgColor:function(tr){ //设置背景色tr.style.backgroundColor="#c0c0c0"}}function f(a,b){var sumRow=function(row){return Number(row.cells[1].innerHTML)+Number(row.cells[2].innerHTML)};return sumRow(a)>sumRow(b)?1:-1;}</script></head><body><button onClick="javascript:mytable.rnd()">随机选择行</button><button onClick="javascript:mytable.add()">添加一行</button><button onClick="javascript:mytable.del()">删除选定行</button><button onClick="javascript:mytable.up()">上移选定行</button><button onClick="javascript:mytable.down()">下移选定行</button><button onClick="javascript:mytable.sort(1)">按第一列排序</button><button onClick="javascript:mytable.sort(f)">按数据和排序</button><br/><br/><table width=100%><tr><td valign="top"><table border id="tbl" width="80%"></table></td></tr></table></body></html> 哦,忘了LZ的“tr元素”...<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>新建网页 2</title><script defer>document.getElementById("table1").onclick = function(){ var e = event.srcElement; alert("您点选的是第" + [e.parentElement.rowIndex + 1] + "行,第" + [e.cellIndex + 1] + "列;\ntr元素为:\n" + e.parentElement.innerHTML);}</script></head><body><table border="1" width="100%" id="table1"> <tr> <td>1 </td> <td>1 </td> <td> 1</td> </tr> <tr> <td>2 </td> <td>2 </td> <td>2 </td> </tr> <tr> <td>3 </td> <td>3 </td> <td>3 </td> </tr></table></body></html>还只有26分,能下载多少资源?这年头雷锋真不值钱了 LOL js如何获取几个月后的日期 这个函数正确吗?还有就是怎样用?谢谢了! 一个一直没有明确答案的问题! 急急急!!。在线等。。javascript高手请进。。。 求大神帮忙 把输入的ip号取出来 想学JAVASCRIPT~~~~~ 为什么不能动态 元素 !!!!!!! 急!!!!!!!!!! ◆◆大家来看看,!谁能帮帮我?特别邀请 版主:zhaoweiwei、xinyunyishui、kingdomzhf帮忙◆◆重金酬谢! 求这样的代码 javascript 逗号 大家有用IE8的吗?在IE8下用JS装入的内容好像都会出界,这是为什么啊 设置不了控件状态!
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>新建网页 2</title>
<script>
function window_onload(){
var t = document.getElementById("table1");
var rows = t.rows;//tr的数组
for(var i=0;i<rows.length;i++){
var row = rows[i];
var index = row.rowIndex;
alert("第"+(i+1)+"行===>"+row.outerHTML);
}
}</script>
</head><body onload="window_onload()"><table border="1" width="100%" id="table1">
<tr>
<td>1 </td>
<td>1 </td>
<td> 1</td>
</tr>
<tr>
<td>2 </td>
<td>2 </td>
<td>2 </td>
</tr>
<tr>
<td>3 </td>
<td>3 </td>
<td>3 </td>
</tr>
</table></body></html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>新建网页 2</title><script defer>
document.getElementById("table1").onclick = function(){
var e = event.srcElement;
alert("您点选的是第" + [e.parentElement.rowIndex + 1] + "行,第" + [e.cellIndex + 1] + "列");
}
</script></head>
<body>
<table border="1" width="100%" id="table1">
<tr>
<td>1 </td>
<td>1 </td>
<td> 1</td>
</tr>
<tr>
<td>2 </td>
<td>2 </td>
<td>2 </td>
</tr>
<tr>
<td>3 </td>
<td>3 </td>
<td>3 </td>
</tr>
</table>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>无标题页</title>
<script type="text/javascript">
var mytable=null;
window.onload=function(){
mytable=new CTable("tbl",10); //随机创建10行表格
}
Array.prototype.each=function(f){ //数组的遍历
for(var i=0;i<this.length;i++) f(this[i],i,this)}
function $A(arrayLike){ //数值的填充
for(var i=0,ret=[];i<arrayLike.length;i++) ret.push(arrayLike[i]);
return ret
}
Function.prototype.bind = function() { //数据的绑定
var __method = this, args = $A(arguments), object = args.shift();
return function() {
return __method.apply(object, args.concat($A(arguments)));
}
}
function CTable(id,rows){
this.tbl=typeof(id)=="string"?document.getElementById(id):id;
if (rows && /^\d+$/.test(rows)) this.addrows(rows) //为表格添加行数
}
CTable.prototype={
addrows:function(n){ //随机添加n行
new Array(n).each(this.add.bind(this))
},
add:function(){ //添加1行
var self=this;
var tr = self.tbl.insertRow(-1),td1= tr.insertCell(-1),td2= tr.insertCell(-1),td3= tr.insertCell(-1);
var chkbox=document.createElement("INPUT")
chkbox.type="checkbox"
chkbox.onclick=self.highlight.bind(self)
td1.appendChild(chkbox) //第一列添加复选框
td1.setAttribute("width","35")
td2.innerHTML=Math.ceil(Math.random()*99) //第二列的随机填充值
td3.innerHTML=Math.ceil(Math.random()*99) //第三列的随机填充值
},
del:function(){ //删除所选行
var self=this
$A(self.tbl.rows).each(function(tr){if (self.getChkBox(tr).checked) tr.parentNode.removeChild(tr)})
},
up:function(){ //上移所选行
var self=this
var upOne=function(tr){ //上移1行
if (tr.rowIndex>0){
self.swapTr(tr,self.tbl.rows[tr.rowIndex-1])
self.getChkBox(tr).checked=true}}
var arr=$A(self.tbl.rows).reverse() //反选
if (arr.length>0 && self.getChkBox(arr[arr.length-1]).checked){
for(var i=arr.length-1;i>=0;i--){
if (self.getChkBox(arr[i]).checked){
arr.pop()
}else{
break}}}
arr.reverse().each(function(tr){if (self.getChkBox(tr).checked) upOne(tr)});
},
down:function(){ //下移所选行
var self=this
var downOne=function(tr){
if (tr.rowIndex<self.tbl.rows.length-1) {
self.swapTr(tr,self.tbl.rows[tr.rowIndex+1]);
self.getChkBox(tr).checked=true;
}}
var arr=$A(self.tbl.rows)
if (arr.length>0 && self.getChkBox(arr[arr.length-1]).checked){
for(var i=arr.length-1;i>=0;i--){
if (self.getChkBox(arr[i]).checked){
arr.pop()
}else{
break}}
}
arr.reverse().each(function(tr){if (self.getChkBox(tr).checked) downOne(tr)});
},
sort:function(){ //排序
var self=this,order=arguments[0];
var sortBy=function(a,b){
if (typeof(order)=="number"){ //数字,则按数字指示的列排序
return Number(a.cells[order].innerHTML)>=Number(b.cells[order].innerHTML)?1:-1; //转化为数字类型比较大小
}else if (typeof(order)=="function"){ //返回结果排序
return order(a,b);
}else{
return 1;
}
}
$A(self.tbl.rows).sort(sortBy).each(function(x){
var checkStatus=self.getChkBox(x).checked;
self.tbl.firstChild.appendChild(x);
if (checkStatus) self.getChkBox(x).checked=checkStatus;
});
},
rnd:function(){ //随即选择几行数据
var self=this,selmax=0,tbl=self.tbl;
if (tbl.rows.length){
selmax=Math.max(Math.ceil(tbl.rows.length/4),1); //选择的行数不超过tr数的1/4
$A(tbl.rows).each(function(x){
self.getChkBox(x).checked=false;
self.restoreBgColor(x)
})
}else{
return alert("无数据可以选")
}
new Array(selmax).each(function(){
var tr=tbl.rows[Math.floor(Math.random()*tbl.rows.length)]
self.getChkBox(tr).checked=true;
self.highlight({target:self.getChkBox(tr)})
})
},
highlight:function(){ //设置行的背景色
var self=this;
var evt=arguments[0] || window.event
var chkbox=evt.srcElement || evt.target
var tr=chkbox.parentNode.parentNode
chkbox.checked?self.setBgColor(tr):self.restoreBgColor(tr)
},
swapTr:function(tr1,tr2){ //交换tr1和tr2的位置
var target=(tr1.rowIndex<tr2.rowIndex)?tr2.nextSibling:tr2;
var tBody=tr1.parentNode
tBody.replaceChild(tr2,tr1);
tBody.insertBefore(tr1,target);
},
getChkBox:function(tr){ //从tr得到 checkbox对象
return tr.cells[0].firstChild
},
restoreBgColor:function(tr){
tr.style.backgroundColor="#ffffff"
},
setBgColor:function(tr){ //设置背景色
tr.style.backgroundColor="#c0c0c0"
}
}function f(a,b){
var sumRow=function(row){return Number(row.cells[1].innerHTML)+Number(row.cells[2].innerHTML)};
return sumRow(a)>sumRow(b)?1:-1;
}
</script>
</head>
<body>
<button onClick="javascript:mytable.rnd()">随机选择行</button>
<button onClick="javascript:mytable.add()">添加一行</button>
<button onClick="javascript:mytable.del()">删除选定行</button>
<button onClick="javascript:mytable.up()">上移选定行</button>
<button onClick="javascript:mytable.down()">下移选定行</button>
<button onClick="javascript:mytable.sort(1)">按第一列排序</button>
<button onClick="javascript:mytable.sort(f)">按数据和排序</button>
<br/><br/>
<table width=100%>
<tr>
<td valign="top"><table border id="tbl" width="80%"></table></td>
</tr>
</table>
</body>
</html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>新建网页 2</title><script defer>
document.getElementById("table1").onclick = function(){
var e = event.srcElement;
alert("您点选的是第" + [e.parentElement.rowIndex + 1] + "行,第" + [e.cellIndex + 1] + "列;\ntr元素为:\n" + e.parentElement.innerHTML);
}
</script></head>
<body>
<table border="1" width="100%" id="table1">
<tr>
<td>1 </td>
<td>1 </td>
<td> 1</td>
</tr>
<tr>
<td>2 </td>
<td>2 </td>
<td>2 </td>
</tr>
<tr>
<td>3 </td>
<td>3 </td>
<td>3 </td>
</tr>
</table>
</body>
</html>还只有26分,能下载多少资源?这年头雷锋真不值钱了 LOL