下面两段代码有什么区别?
1、
<form method="post" action="save.php">
用户名:<input type="text" name="username" id="username" value="" />
</br>
密 码:<input type="password" name="pass" id="pass" value="" />
</br>
<input type="submit" value="确定" name="submit" />
<input type="reset" value="重置" name="reset" />
</form>
2、<form method="post" action="save.php">
用户名:<input type="text" name="username" id="username" value="" />
<label for="pass">密码:</label>
<input type="password" name="pass" id="pass" value="" />
<input type="submit" value="确定" name="submit" />
<input type="reset" value="重置" name="reset" />
</form>