yii2怎么使用user组件

/user/registration/register Displays registration form
/user/registration/resend Displays resend form
/user/registration/confirm Confirms a user (requires id and token query params)
/user/security/login Displays login form
/user/security/logout Logs the user out (available only via POST method)
/user/recovery/request Displays recovery request form
/user/recovery/reset Displays password reset form (requires id and token query params)
/user/settings/profile Displays profile settings form
/user/settings/account Displays account settings form (email, username, password)
/user/settings/networks Displays social network accounts settings page
/user/profile/show Displays user's profile (requires id query param)
/user/admin/index Displays user management interface

<div class="login-strip">
　　<?php 
　　if(Yii::$app->user->isGuest){
　　?>
　　<?= Html::a("<i class='icon-plus'></i> 注 册",['/user/registration/register']); ?> |
　　<?= Html::a("<i class='icon-signin'></i> 登 录",['/user/security/login']); ?>
　　<?php
　　} else {
　　?>
　　<?= Html::a("<i class='icon-signout'></i> 退出",['/user/security/logout']); ?>
　　<?php
　　}
　　?>
</div>