html5

网页结构

header:头部

nav:导航

section:章节

article:文章

aside:定义页面内容之外的内容。

footer：底部

<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			* {
				text-align: center;
				margin: 0;
				padding: 0;
				line-height: 100px;
				font-size: 30px;
			}
			
			header {
				width: 800px;
				height: 100px;
				background: skyblue;
			}
			
			nav {
				width: 800px;
				height: 100px;
				background: red;
			}
			
			section {
				width: 600px;
				height: 300px;
				background: green;
				float: left;
			}
			
			article {
				width: 600px;
				height: 100px;
				background: deepskyblue;
			}
			
			footer {
				width: 800px;
				height: 100px;
				background: firebrick;
				clear: both;
			}
			
			aside {
				width: 200px;
				height: 300px;
				float: left;
				background: darkmagenta;
			}
			
			div {
				width: 200px;
				height: 100px;
				background: blue;
			}
		</style>
	</head>

	<body>
		<header>header</header>
		<nav>nav</nav>
		<section>
			<h1>section</h1>
			<article>article</article>
			<article>article</article>
		</section>
		<aside>
			<h1>aside</h1>
			<div>widget</div>
			<div>widget</div>
		</aside>
		<footer>footer</footer>
	</body>

</html>
实例

数据库操作

1.添加
INSERT INTO TABLE_NAME (column1, column2, column3,...columnN)]  
VALUES (value1, value2, value3,...valueN);
2.删除
DELETE FROM table_name
WHERE [condition];
3.修改
UPDATE table_name
SET column1 = value1, column2 = value2...., columnN = valueN
WHERE [condition];
4.查找
SELECT column1, column2, columnN FROM table_name;

地图API

效果展示