<head>
<title>此处写标题</title> 这是唯一能被用户看到的标记
<meta/>标签：
1。设置字符集：<meta http-equiv="content-type" content="text/html" charset="utf-8"/>
2。刷新页面：<meta http-equiv="refresh" content="1"/>
3。跳转页面：<meta http-equiv="refresh" content="1" url="a.html">
4。转场效果：<meta http=equiv="Page-Enter" content="revealtrans(duration=1,transition=10)"/>
5。<meta name="关键字，让别人能搜到的内容" content="网页描述的内容">
</head>
<html>
<head>
<title>cicle no cicle</title>
</head>
<body>
<form>
<input type="text"/>
<br/>
<input type="password"/>
<br/>
<input type="radio" name="aaa"/>AAA
<input type="radio" name="aaa"/>BBB
<input type="radio" name="aaa"/>CCC
<br/>
<input type="checkbox" name="bbb"/>111
<input type="checkbox" name="bbb"/>222
<input type="checkbox" name="bbb"/>333
<br/>
<input type="file"/>
<br/>
<select>
<option>111</option>
<option>222</option>
<option>333</option>
<option>444</option>
</select>
<br/>
<br/>
<textarea rows="5" cols="20"></textarea>
<br/>
<input type="submit"/>
</form>
</body>
</html>
效果如下。
