我是超级懒惰的，我知道这一点。htaccess是较慢的（据我所知）。与客户，谁要求共享主机-这个。htaccess：

RewriteEngine on

# End the processing, if a rewrite already occurred

RewriteRule ^(frontend|backend)/web/ - [L]

# Handle the case of backend, skip ([S=1]) the following rule, if current matched

RewriteRule ^admin(/(.*))?$ backend/web/$2 [S=1]

# handle the case of frontend

RewriteRule .* frontend/web/$0

# Uncomment the following, if you want speaking URL

# RewriteCond %{REQUEST_FILENAME} !-f

# RewriteCond %{REQUEST_FILENAME} !-d

# RewriteRule ^([^/]+/web)/.*$ $1/index.php

# If mod_expires (set headers for some stuff)

<IfModule mod_expires.c>
    ExpiresActive on

    ExpiresByType image/jpg "access plus 1 month"
    ExpiresByType image/jpeg "access plus 1 month"
    ExpiresByType image/gif "access plus 1 month"
    ExpiresByType image/png "access plus 1 month"
    ExpiresByType text/javascript "access plus 1 month"
    ExpiresByType application/javascript "access plus 1 month"
    ExpiresByType text/css "access plus 1 month"
 </IfModule>

因此，基本上，www.domainname.com作为前端，*/admin作为后端（如果您使用高级模板）
编辑-抱歉，忘记了：在frontend/config/main.php文件中

'components' => [
        'request' => [
            'csrfParam' => '_csrf-frontend',
            'baseUrl' => '/',
        ],

和/config/main. php文件夹中的文件

'components' => [
        'request' => [
            'csrfParam' => '_csrf-backend',
            'baseUrl' => '/admin',
        ],