1.表格的动态删除和 添加
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>动态表格</title>
<style>
table{
border: 1px solid;
margin: auto;
width: 500px;
}
td,th{
text-align: center;
border: 1px solid;
}
div{
text-align: center;
margin: 50px;
}
</style>
</head>
<body>
<div>
<input type="text" id="id" placeholder="请输入编号">
<input type="text" id="name" placeholder="请输入姓名">
<input type="text" id="gender" placeholder="请输入性别">
<input type="button" value="添加" id="btn_add">
</div>
<table id="table">
<caption>学生信息表</caption>
<tr>
<th>编号</th>
<th>姓名</th>
<th>性别</th>
<th>操作</th>
</tr>
<tr>
<td>1</td>
<td>令狐冲</td>
<td>男</td>
<td><a href="/go.html?url=javascript:void(0);" onclick="delTr(this);">删除</a></td>
</tr>
<tr>
<td>2</td>
<td>任我行</td>
<td>男</td>
<td><a href="/go.html?url=javascript:void(0);" onclick="delTr(this);">删除</a></td>
</tr>
<tr>
<td>3</td>
<td>岳不群</td>
<td>?</td>
<td><a href="/go.html?url=javascript:void(0);" onclick="delTr(this);">删除</a></td>
</tr>
</table>
<script>
document.getElementById("btn_add").onclick = function () {
//获取到文本输入框的值
var id = document.getElementById("id").value;
var name = document.getElementById("name").value;
var gender = document.getElementById("gender").value;
//获取到table
var tab = document.getElementById("table");
//使用HTML DOM中的innerHTML属性往table中添加一行
tab.innerHTML +=(" <tr>\n" +
" <td>"+id+"</td>\n" + //将文本输入框的值拼接到表格一行里面
" <td>"+name+"</td>\n" +
" <td>"+gender+"</td>\n" +
" <td><a href=\"javascript:void(0);\" onclick=\"delTr(this);\">删除</a></td>\n" +
" </tr>");
}
//创建一个删除表格内容的方法
function delTr(obj) {
var tab = obj.parentNode.parentNode.parentNode;
var tr = obj.parentNode.parentNode;
tab.removeChild(tr);
}
</script>
</body>
</html>
<!DOCTYPE html>
<html l
