<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="bootstrap-3.3.7-dist/css/bootstrap.min.css">
<script src="./Jquery/jquery-3.4.1.min.js"></script>
<script src="./bootstrap-3.3.7-dist/js/bootstrap.js"></script>
</head>
<body>
<form name="myForm">
<table class="table table-bordered" id="tab" name="tab" border="0px">
<tr>
<td>编号</td>
<td>姓名</td>
<td>年龄</td>
<td>地址</td>
<td>操作</td>
<td>操作</td>
</tr>
<tr id="tr1" onm ouseOver="onmouseOverMethod(this)" onm ouseOut="onmouseOutMethod(this)" onclick="onClickChangeStyle(this)">
<td>1</td>
<td>张三</td>
<td>15</td>
<td>湖南</td>
<td><a href="#" onclick="addRow()">添加</a></td>
<td><a href="#" onclick="deleteRow(this)">删除</a></td>
</tr>
<tr id="tr2" onm ouseOver="onmouseOverMethod(this)" onm ouseOut="onmouseOutMethod(this)" onclick="onClickChangeStyle(this)">
<td>2</td>
<td>李四</td>
<td>15</td>
<td>湖南</td>
<td><a href="#" onclick="addRow()">添加</a></td>
<td><a href="#" onclick="deleteRow(this)">删除</a></td>
</tr>
<tr id="tr3" onm ouseOver="onmouseOverMethod(this)" onm ouseOut="onmouseOutMethod(this)" onclick="onClickChangeStyle(this)">
<td>3</td>
<td>王五</td>
<td>15</td>
<td>湖南</td>
<td><a href="#" onclick="addRow()">添加</a></td>
<td><a href="#" onclick="deleteRow(this)">删除</a></td>
</tr>
</table>
</form>
</body>
<script>
var selectRow=null;
//单击时,改变样式;
function onClickChangeStyle(obj){
//获取表格对象;
var tab = document.getElementById("tab");
//获取当前行选择下标;
var currentRowIndex = obj.rowIndex;
//获取表格所有行数;
var tablRows = tab.rows.length;
//循环表格的所有行;并且选择的当前行，改变背景颜色；
for(var i = 1;i<tablRows;i=i+1){
if(currentRowIndex == i){
//为选中的当前，设置css样式;
selectRow = tab.rows[i];
tab.rows[i].className= "onClickStyle";
}else{
//把没有选中的行的背景样式设置为白色;
tab.rows[i].className= "hideStyle";
}
}
}
//鼠标移入时，改变颜色;
function onm ouseOverMethod(selectThis){
selectThis.className="displayStyle";
if(selectRow==selectThis){
selectThis.className="onClickStyle";
}
}
//鼠标移除时，改变背景颜色;
function onm ouseOutMethod(selectThis){
selectThis.className="hideStyle";
if(selectRow == selectThis){
selectThis.className="onClickStyle";
}
}
//添加行;
function addRow(){
var tab = document.getElementById('tab');
var rowIndex = tab.rows.length+1;
//添加一行;
var tr = tab.insertRow();
tr.onmouseover = tr.className="displayStyle" ;
tr.onmouseout = tr.className="hideStyle" ;
tr.onclick=function (){this.className="onClickChangeStyle(this)";}
var td2 = tr.insertCell();
var td3 = tr.insertCell();
var td4 = tr.insertCell();
var td5 = tr.insertCell();
var td6 = tr.insertCell();
var td7 = tr.insertCell();
td2.innerHTML = ""+rowIndex;
td3.innerHTML = "测试";
td4.innerHTML = "测试";
td5.innerHTML = "无地址";
td6.innerHTML = "<a href='#' onclick='addRow()'>添加</a>";
td7.innerHTML = "<a href='#' onclick='deleteRow(this)'>删除</a>";
//初始化行;
initRows(tab);
}
//初始化行,设置序列号;
function initRows(tab){
var tabRows = tab.rows.length;
for(var i = 0;i<tabRows.length;i++){
tab.rows[i].cells[0].firstChild.value=i;
}
}
//删除行;(obj代表连接对象)
function deleteRow(obj){
var tab = document.getElementById('tab');
//获取tr对象;
var tr = obj.parentNode.parentNode;
if(tab.rows.length>2){
//tr.parentNode，指的是，table对象;移除子节点;
tr.parentNode.removeChild(tr);
}
//重新生成行号;
initRows(document.getElementById('tab'));
}
</script>
</html>