Version: Next
innerHTML获取和修改标签内容
在页面输入框输入信息，单机添加，内容添加到表格后面
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</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>
<!--
- 标签体的设置和获取：innerHTML
- 使用HTML元素对象的属性
- 设置样式
-->
<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>
<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="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="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="javascript:void(0);" onclick="delTr(this);">删除</a></td>
</tr>
</table>
<script>
document.getElementById("btn_add").onclick = function () {
var id = document.getElementById("id").value;
var name = document.getElementById("name").value;
var gender = document.getElementById("gender").value;
//获取table
var table = document.getElementsByTagName("table")[0];
//追加一行
table.innerHTML += "<tr>\n" +
" <td>" + id + "</td>\n" +
" <td>" + name + "</td>\n" +
" <td>" + gender + "</td>\n" +
" <td><a href=\"javascript:void(0);\" onclick=\"delTr(this);\">删除</a></td>\n" +
" </tr>"
};
function delTr(obj) {
obj.parentNode.parentNode.parentNode.removeChild(obj.parentNode.parentNode);
}
</script>
</body>
</html>