javascript 表格的添加与删除
2016-12-07 本文已影响14人
何必自找失落_
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>javascript表格的添加和删除</title>
<link rel="stylesheet" type="text/css" href="css/reset.css">
<style type="text/css">
#demo{
width: 420px;
margin: 30px auto;
}
input{
width: 330px;
height: 24px;
line-height: 24px;
float:left;
border-radius: 4px;
outline: none;
border-color: #ccc;
}
button{
width: 60px;
text-align: center;
line-height: 30px;
height: 30px;
border: none;
background-color: #ccc;
border: 1px solid #000;
color: #fff;
border-radius: 4px;
float: right;
cursor: pointer;
}
table{
line-height: 30px;
margin-top: 20px;
border-bottom: 1px solid #ccc;
border-right: 1px solid #ccc;
}
th{
text-align: left;
text-indent: 20px;
}
td{
text-indent: 20px;
}
th,td{
border-left: 1px solid #ccc;
border-top: 1px solid #ccc;
}
a{
text-decoration: none;
}
</style>
</head>
<body>
<div id="demo">
<div style="overflow:hidden"><input type="text" name=""><button id="btn">添加</button></div>
<table>
<thead>
<tr>
<th width="180px">表头内容</th>
<th width="180px">表头内容</th>
<th width="180px">表头内容</th>
</tr>
</thead>
<tbody>
<tr>
<td>表头内容1</td>
<td>表头内容2</td>
<td><a href="javascript:void(0)">del</a></td>
</tr>
<tr>
<td>表头内容1</td>
<td>表头内容2</td>
<td><a href="javascript:void(0)">del</a></td>
</tr>
<tr>
<td>表头内容1</td>
<td>表头内容2</td>
<td><a href="javascript:void(0)">del</a></td>
</tr>
</tbody>
</table>
</div>
<script type="text/javascript">
window.onload = function (){
var tbody = document.getElementsByTagName("tbody")[0];
var btn = document.getElementById("btn");
var input = document.getElementsByTagName("input")[0];
btn.onclick = function (){
add();
}
tbody.onclick = function (event){
var event = event || window.event;
// ie7 ie8 不支持event.target
var src = event.srcElement || event.target;
// 如果点击的是del 然后删除tr (这种事件委托事件处理事件更强)
if (src.innerHTML == "del") {
tbody.removeChild(src.parentNode.parentNode);
}
}
function add(){
var tr = document.createElement("tr");
// tr.innerHTML = "<td>"+input.value+"</td><td>表头内容2</td><td><a href='javascript:void(0)'>del</a></td>";
//我使用上面的方法，低版本浏览器无法正确添加
var td1 = document.createElement("td");
td1.innerHTML = input.value;
var td2 = document.createElement("td");
td2.innerHTML = "表头内容i";
var td3 = document.createElement("td");
var a = document.createElement("a");
a.innerHTML = "del";
a.setAttribute("href","javascript:void(0)")
td3.appendChild(a);
tr.appendChild(td1);
tr.appendChild(td2);
tr.appendChild(td3);
tbody.appendChild(tr);
}
}
</script>
</body>
</html>
