列表标签
实例：
<select>
<option value="0"> [email protected] </option>
<option selected="selected" value="1"> [email protected]</option>
<option value="2">[email protected]</ opiton>
</ select>
备注：只能选择，不能删除。
训练：
<html>
<head >
<title >练习</title >
</head>
<body>
<form >
用户名：<input name ="txt1" type ="text“ value ="" />
密码：<input name ="pwd" type=password" value="1234567" />
<input type="reset" name="rs" value="重置" />
<input type="submit" name="sm" value="提交注册信息" /> <br />
<input type="button " value ="点播音乐" />
<input type="button " value ="取消"> <br />
爱好：<input type="checkbox " name ="ch1" value ="chone1" /> 运动
<input type="checkbox" name="ch2" value ="chone2" checked ="checked " /> 聊天
<input type="CheckBox“ name="ch3" value="chone3" />写代码<br />
性别：<input type="radio " name ="r1" value="nan " checked =" checked > <input type="image" src ="1.jpg"> 男
<input type="radio " name="r1 " value="nv" > <input type="image" src="1.jpg“ > 女
</form>
</body>
</html>
分区标签
示例：
