隔行变色
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<script>
window.onload=function(){
var oTab=document.getElementById(‘table1‘);
for(var i=0;i<oTab.tBodies[0].rows.length;i++){
if(i%2){
oTab.tBodies[0].rows[i].style.background=‘‘;
}
else{
oTab.tBodies[0].rows[i].style.background=‘#ccc‘;
}
}
}
</script>
</head>
<body>
<table id="table1" border="1" width="300" align="center">
<thead>
<td>id</td>
<td>姓名</td>
<td>年龄</td>
</thead>
<tbody>
<tr>
<td>1</td>
<td>张三</td>
<td>25</td>
</tr>
<tr>
<td>2</td>
<td>李四</td>
<td>20</td>
</tr>
<tr>
<td>3</td>
<td>王五</td>
<td>53</td>
</tr>
<tr>
<td>4</td>
<td>张伟</td>
<td>23</td>
</tr>
</tbody>
</table>
</body>
</html>
鼠标移入高亮显示
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<script>
window.onload=function(){
var oTab=document.getElementById(‘table1‘);
var oldColor=‘‘;
for(var i=0;i<oTab.tBodies[0].rows.length;i++){
oTab.tBodies[0].rows[i].onmouseover=function(){
oldColor=this.style.background;
this.style.background=‘green‘;
}
oTab.tBodies[0].rows[i].onmouseout=function(){
this.style.background=oldColor;
}
if(i%2){
oTab.tBodies[0].rows[i].style.background=‘‘;
}
else{
oTab.tBodies[0].rows[i].style.background=‘#ccc‘;
}
}
}
</script>
</head>
<body>
<table id="table1" border="1" width="300" align="center">
<thead>
<td>id</td>
<td>姓名</td>
<td>年龄</td>
</thead>
<tbody>
<tr>
<td>1</td>
<td>张三</td>
<td>25</td>
</tr>
<tr>
<td>2</td>
<td>李四</td>
<td>20</td>
</tr>
<tr>
<td>3</td>
<td>王五</td>
<td>53</td>
</tr>
<tr>
<td>4</td>
<td>张伟</td>
<td>23</td>
</tr>
</tbody>
</table>
</body>
</html>
添加一行
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<script>
window.onload=function ()
{
var oTab=document.getElementById(‘tab1‘);
var oBtn=document.getElementById(‘btn1‘);
var oName=document.getElementById(‘name‘);
var oAge=document.getElementById(‘age‘);
oBtn.onclick=function ()
{
var oTr=document.createElement(‘tr‘);
var oTd=document.createElement(‘td‘);
oTd.innerHTML=oTab.tBodies[0].rows.length+1; //?
oTr.appendChild(oTd);
var oTd=document.createElement(‘td‘);
oTd.innerHTML=oName.value;
oTr.appendChild(oTd);
var oTd=document.createElement(‘td‘);
oTd.innerHTML=oAge.value
oTr.appendChild(oTd);
oTab.tBodies[0].appendChild(oTr);
};
};
</script>
</head>
<body>
姓名：<input id="name" type="text" />
年龄：<input id="age" type="text" />
<input id="btn1" type="button" value="添加" />
<table id="tab1" border="1" width="500">
<thead>
<td>ID</td>
<td>姓名</td>
<td>年龄</td>
</thead>
<tbody>
<tr>
<td>1</td>
<td>Blue</td>
<td>27</td>
</tr>
<tr>
<td>2</td>
<td>张三</td>
<td>23</td>
</tr>
<tr>
<td>3</td>
<td>李四</td>
<td>28</td>
</tr>
<tr>
<td>4</td>
<td>王五</td>
<td>25</td>
</tr>
<tr>
<td>5</td>
<td>张伟</td>
<td>24</td>
</tr>
</tbody>
</table>
</body>
</html>
时间： 2024-08-23 09:38:26