DOM中table的便捷操作
tBobies(数组) tHead tFoot rows(行) cells(单元格)
<body>
<table border="1" id="table1" width="500">
<thead>
<tr>
<td>ID</td>
<td>姓名</td>
<td>年龄</td>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>张三</td>
<td>23</td>
</tr>
</tbody>
</table>
<script>
window.onload = function () {
var oTable = document.getElementById('table1')
alert(oTable.getElementsByTagName('tbody')[0].getElementsByTagName('tr')[0].getElementsByTagName('td')[1].innerHTML)
alert(oTable.tBodies[0].rows[0].cells[1].innerHTML)
}
</script>
</body>隔行变色、高亮
<body>
<table border="1" id="table1" width="500">
<thead>
<tr>
<td>ID</td>
<td>姓名</td>
<td>年龄</td>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>张三</td>
<td>23</td>
</tr>
<tr>
<td>2</td>
<td>里斯</td>
<td>24</td>
</tr>
<tr>
<td>3</td>
<td>王武</td>
<td>25</td>
</tr>
</tbody>
</table>
<script>
window.onload = function () {
var oTable = document.getElementById('table1');
var oldColor = '' //原来的背景颜色
alert(oTable.tBodies[0].rows.length)
for(var i = 0; i < oTable.tBodies[0].rows.length; i++){
oTable.tBodies[0].rows[i].onmouseover = function(){
oldColor = this.style.background; //将原来的背景颜色保存起来
this.style.background = 'yellow'
}
oTable.tBodies[0].rows[i].onmouseout = function(){
this.style.background = oldColor
}
if(i % 2){ // i%2为0时，条件为假
oTable.tBodies[0].rows[i].style.background = "#999"
}else{
oTable.tBodies[0].rows[i].style.background = ""
}
}
}
</script>
</body>添加行、删除行
<body>
<input type="text" id="name">
<input type="text" id="age">
<input type="button" id="btn" value="添加">
<table border="1" id="table1" width="500">
<thead>
<tr>
<td>ID</td>
<td>姓名</td>
<td>年龄</td>
<td>操作</td>
</tr>
</thead>
<tbody></tbody>
</table>
<script>
window.onload = function () {
var oTable = document.getElementById('table1'); //获取table
var oName = document.getElementById('name') //获取姓名文本框
var oAge = document.getElementById('age') //获取年龄文本框
var oBtn = document.getElementById('btn') //获取添加按钮
var id = oTable.tBodies[0].rows.length + 1; //将 id 的值作为全局变量保存，避免 id 重复
oBtn.onclick = function () {
var oTr = document.createElement('tr') //创建 tr 元素
oTr.innerHTML = '<td>' + (id++) + '</td><td>' + oName.value + //给 tr 赋值
'</td><td>' +
oAge.value + '</td><td><a href="javascript:;">删除</a></td>'
oTr.getElementsByTagName('a')[0].onclick = function () { // 给删除按钮设置点击时间
oTable.tBodies[0].removeChild(this.parentNode.parentNode)
}
oTable.tBodies[0].appendChild(oTr)
}
}
</script>
</body>表格搜索、忽略大小写、模糊查询
<body>
姓名：<input type="text" id="name"><input type="button" value="搜索" id="btn">
<table border="1" id="table1" width="500">
<thead>
<tr>
<td>ID</td>
<td>姓名</td>
<td>年龄</td>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>张三</td>
<td>23</td>
</tr>
<tr>
<td>2</td>
<td>里斯</td>
<td>24</td>
</tr>
</tbody>
</table>
<script>
window.onload = function () {
var oTable = document.getElementById('table1');
var oName = document.getElementById('name')
var oBtn = document.getElementById('btn')
oBtn.onclick = function()
{
for(var i = 0; i < oTable.tBodies[0].rows.length; i++){ //循环每一行
var oTd = oTable.tBodies[0].rows[i].cells[1].innerHTML.toLowerCase()
var oInp = oName.value.toLowerCase()
//if(oTd == oInp){ //比较每一行的第二列和文本行的值是否相等
//if(oInp.toLowerCase() == oTd.toLowerCase()){ //将值先转成小写，再进行比较, 或者全部转成大写 toUpperCase()
if(oTd.search(oInp) != -1){ //字符串中的search()，如果包含返回字符的位置、不包含返回 -1
oTable.tBodies[0].rows[i].style.background = 'red'
}else{
oTable.tBodies[0].rows[i].style.background = ''
}
}
}
}
</script>
</body>