$htmlManage = new \SaTan\Html\HtmlManage();
//生成form
$form =$htmlManage->form();
//设置form action地址
$form->action('index.php?s=index/index/post');
//设置form method属性
$form->method('POST');
//生成input
$input = $htmlManage->input();
//生成一个input框
$pass_input = $htmlManage->input();
//设置input框type属性值为password
$pass_input->setAttributes(['type'=>'password']);
//设置name和id
$pass_input->setId('password')
->name('password');
//设置name、id、lang属性
$input->name('username')
->setId('username')
->lang('zh-cn');
//加载input到form对象中
$form->content($input);
$form->content($pass_input);
//输出html
echo $form->render();
/**
* 输出内容是
* <form action="index.php?s=index/index/post" method="POST" >
* <input name="username" id="username" lang="zh-cn" />
* <input type="password" id="password" name="password"/>
* <form/>
*/