表单标签input的代码
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action='#' method='get'>
<label for='username'>用户名:</lable><input name='username' placeholder='请输入用户名' id='username'><br>
<label for='password'>密码:</lable><input type='password' name='password' placeholder='请输入密码' id='password'><br>
性别:男<input type='radio' name='gender' value='male' checked='checked'>女<input type='radio' name='gender' value='female'><br>
<br>
爱好:<input type='checkbox' name='hobby' value='shopping' checked='checked'>逛街<input type='checkbox' name='hobby' value='eat'>吃饭
<input type='checkbox' name='span' checked='checked'>桑拿
<br>
<input type='submit' value='登录'>
</form>
</body>
</html>