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老师批语：
html5新增了几个布局标签，下面我们将新增的标签分析一下。
1.<header>设置页面的头部页眉
2.<footer>设置页面的页脚
3.<main>设置页面的主体,每个页面仅限一个
4.<article>标识文档
5.<aside>标识边栏
6.<nav>标识导航
7.<section>区块
8.<div>自定义区块,可放javascript或其它
（二） 2.1以下是文档管理的布局代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>文档管理</title>
</head>
<body>
<table>
<caption>文档管理</caption>
<tr>
<td>ID</td>
<td>文档名</td>
<td>文档类型</td>
<td>文档大小</td>
<td>操作</td>
</tr>
<tr>
<td>1</td>
<td>工作日志1</td>
<td>日志</td>
<td>200kb</td>
<td><a href="">编辑</a> | <a href="">删除</a></td>
</tr>
<tr>
<td>2</td>
<td>php.xls</td>
<td>电子表格</td>
<td>1024kb</td>
<td><a href="">编辑</a> | <a href="">删除</a></td>
</tr>
</table>
<!--分页-->
<p>
<a href="">首页</a>
<a href="" class="active">1</a>
<a href="">2</a>
<a href="">3</a>
<a href="">4</a>
<a href="" class="more">...</a>
<a href="">尾页</a>
</p>
</body>
</html>
<style>
table, th, td {
border: 1px solid black;
}
table {
width: 650px;
margin: auto;
border-collapse: collapse;
text-align: center;
}
td {
padding: 10px;
}
a {
text-decoration-line: none;
color: green;
}
a:hover {
color: brown;
text-decoration-line: underline;
}
tr:first-child {
margin-top: 20px;
background-color: lightblue;
}
table caption {
font-size: 1.5rem;
font-weight: bolder;
margin-bottom: 20px;
}
p {
text-align: center;
}
/*首页样式*/
p a:first-child {
width: 56px;
}
p a:last-child {
width: 56px;
}
p a {
display: inline-block;
width: 28px;
height: 24px;
border: 1px solid green;
margin-left:2px;
line-height: 24px;
}
/*当前页样式*/
.active {
background-color: green;
color: white;
}
.more {
border: none;
}
</style>点击 "运行实例" 按钮查看在线实例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>文档管理</title>
</head>
<body>
<table>
<caption>文档管理</caption>
<tr>
<td>ID</td>
<td>文档名</td>
<td>文档类型</td>
<td>文档大小</td>
<td>操作</td>
</tr>
<tr>
<td>1</td>
<td>工作日志1</td>
<td>日志</td>
<td>200kb</td>
<td><a href="">编辑</a> | <a href="">删除</a></td>
</tr>
<tr>
<td>2</td>
<td>php.xls</td>
<td>电子表格</td>
<td>1024kb</td>
<td><a href="">编辑</a> | <a href="">删除</a></td>
</tr>
</table>
<!--分页-->
<p>
<a href="">首页</a>
<a href="" class="active">1</a>
<a href="">2</a>
<a href="">3</a>
<a href="">4</a>
<a href="" class="more">...</a>
<a href="">尾页</a>
</p>
</body>
</html>
<style>
table, th, td {
border: 1px solid black;
}
table {
width: 650px;
margin: auto;
border-collapse: collapse;
text-align: center;
}
td {
padding: 10px;
}
a {
text-decoration-line: none;
color: green;
}
a:hover {
color: brown;
text-decoration-line: underline;
}
tr:first-child {
margin-top: 20px;
background-color: lightblue;
}
table caption {
font-size: 1.5rem;
font-weight: bolder;
margin-bottom: 20px;
}
p {
text-align: center;
}
/*首页样式*/
p a:first-child {
width: 56px;
}
p a:last-child {
width: 56px;
}
p a {
display: inline-block;
width: 28px;
height: 24px;
border: 1px solid green;
margin-left:2px;
line-height: 24px;
}
/*当前页样式*/
.active {
background-color: green;
color: white;
}
.more {
border: none;
}
</style>点击 "运行实例" 按钮查看在线实例
2.2 类别管理的界面如下
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>类别管理</title>
</head>
<body>
<table>
<caption>类别管理</caption>
<tr>
<td>ID</td>
<td>类别名</td>
<td>操作</td>
</tr>
<tr>
<td>1</td>
<td>日志</td>
<td><a href="">编辑</a> | <a href="">删除</a></td>
</tr>
<tr>
<td>2</td>
<td>电子表格</td>
<td>1024kb</td>
<td><a href="">编辑</a> | <a href="">删除</a></td>
</tr>
</table>
<!--分页-->
<p>
<a href="">首页</a>
<a href="" class="active">1</a>
<a href="">2</a>
<a href="">3</a>
<a href="">4</a>
<a href="" class="more">...</a>
<a href="">尾页</a>
</p>
</body>
</html>
<style>
table, th, td {
border: 1px solid black;
}
table {
width: 650px;
margin: auto;
border-collapse: collapse;
text-align: center;
}
td {
padding: 10px;
}
a {
text-decoration-line: none;
color: green;
}
a:hover {
color: brown;
text-decoration-line: underline;
}
tr:first-child {
margin-top: 20px;
background-color: lightblue;
}
table caption {
font-size: 1.5rem;
font-weight: bolder;
margin-bottom: 20px;
}
p {
text-align: center;
}
/*首页样式*/
p a:first-child {
width: 56px;
}
p a:last-child {
width: 56px;
}
p a {
display: inline-block;
width: 28px;
height: 24px;
border: 1px solid green;
margin-left:2px;
line-height: 24px;
}
/*当前页样式*/
.active {
background-color: green;
color: white;
}
.more {
border: none;
}
</style>点击 "运行实例" 按钮查看在线实例
3、 产品管理页面
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>产品管理</title>
</head>
<body>
<table>
<caption>产品管理</caption>
<tr>
<td>ID</td>
<td>图片</td>
<td>型号</td>
<td>价格</td>
<td>操作</td>
</tr>
<tr>
<td>1</td>
<td><img src="./static/images/1.jpg" alt="" width="50"></td>
<td>iPhone X</td>
<td>5888</td>
<td><a href="">编辑</a> | <a href="">删除</a></td>
</tr>
<tr>
<td>2</td>
<td><img src="./static/images/2.jpg" alt="" width="50"></td>
<td>华为 P20</td>
<td>7888</td>
<td><a href="">编辑</a> | <a href="">删除</a></td>
</tr>
<tr>
<td>3</td>
<td><img src="./static/images/3.jpg" alt="" width="50"></td>
<td>小米 9</td>
<td>6899</td>
<td><a href="">编辑</a> | <a href="">删除</a></td>
</tr>
<tr>
<td>4</td>
<td><img src="./static/images/4.jpg" alt="" width="50"></td>
<td>OPPO X1</td>
<td>3999</td>
<td><a href="">编辑</a> | <a href="">删除</a></td>
</tr>
</table>
<!--分页-->
<p>
<a href="">首页</a>
<a href="" class="active">1</a>
<a href="">2</a>
<a href="">3</a>
<a href="">4</a>
<a href="" class="more">...</a>
<a href="">尾页</a>
</p>
</body>
</html>
<style>
table, th, td {
border: 1px solid black;
}
table {
width: 650px;
margin: auto;
border-collapse: collapse;
text-align: center;
}
td {
padding: 10px;
}
a {
text-decoration-line: none;
color: green;
}
a:hover {
color: brown;
text-decoration-line: underline;
}
tr:first-child {
margin-top: 20px;
background-color: lightblue;
}
table caption {
font-size: 1.5rem;
font-weight: bolder;
margin-bottom: 20px;
}
p {
text-align: center;
}
/*首页样式*/
p a:first-child {
width: 56px;
}
p a:last-child {
width: 56px;
}
p a {
display: inline-block;
width: 28px;
height: 24px;
border: 1px solid green;
margin-left:2px;
line-height: 24px;
}
/*当前页样式*/
.active {
background-color: green;
color: white;
}
.more {
border: none;
}
</style>点击 "运行实例" 按钮查看在线实例
总结：通过学习HTML新的标签，总体页面的布局趋于更加简单，同时页面划分更加清晰。通过以上的几个管理的页面，有助于更好理解这些标签。
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