我找到了HTCet禁用整个网站的代码（用于维护模式）：
Options +FollowSymlinks
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_URI} !/offline.php$
RewriteRule .* /offline.php [R=307,L]
现在在我的离线页面.php我有一个指向 css 和 js 文件的链接，例如：
<link rel="stylesheet" href="include/css/error.css">
<script src="include/js/file.js"></script>
当我使用上面的代码设置维护模式时，加载了离线.php页面，但没有 CSS 和 JS，我怎么能允许加载这两个文件呢？
而且我认为这对于禁用除我的 IP 之外的所有人的网站很有用，这样我就可以更新网站，这可能吗？
我找到一个包含您问题的答案的博客，请查看此网站
以下示例取自上述网站。
如果您的根目录中还没有 .htaccess 文件域，创建一个域并添加以下代码。如果您已经有一个.htaccess 文件，在所有内容前面添加以下代码可能在那里
RewriteEngine On
# Add all the IP addresses of people that are helping in development
# and need to be able to get past the maintenance mode.
# One might call this the 'allow people list'
RewriteCond %{REMOTE_HOST} !^83.101.79.62
RewriteCond %{REMOTE_HOST} !^91.181.207.191
# Make sure the maintenance mode only applies to this domain
# Example: I am hosting different sites on my server
# which could be affected by these rules.
RewriteCond %{HTTP_HOST} ^nocreativity.com$ [OR]
RewriteCond %{HTTP_HOST} ^www.nocreativity.com$
# This is the 'ignore file list'. It allows access to all
# files that are needed to display the maintenance mode page.
# Example: pages, css files, js files, images, anything.
# IMPORTANT: If you don't do this properly, visitors will end up with
# endless redirect loops in their browser.
RewriteCond %{REQUEST_URI} !/offline.htm$
RewriteCond %{REQUEST_URI} !/css/style.css$
RewriteCond %{REQUEST_URI} !/images/logo.png$
# Rewrite whatever request is coming in to the maintenance mode page
# The R=302 tells browsers (and search engines) that this
# redirect is only temporarily.
# L stops any other rules below this from executing whenever somebody is redirected.
RewriteRule .*$ /offline.htm [R=302,L]
这是一个很好的答案，但这是其中的代码，以防链接死亡：
RewriteEngine On
# Add all the IP addresses of people that are helping in development
# and need to be able to get past the maintenance mode.
# One might call this the 'allow people list'
RewriteCond %{REMOTE_HOST} !^83.101.79.62
RewriteCond %{REMOTE_HOST} !^91.181.207.191
# Make sure the maintenance mode only applies to this domain
# Example: I am hosting different sites on my server
# which could be affected by these rules.
RewriteCond %{HTTP_HOST} ^nocreativity.com$ [OR]
RewriteCond %{HTTP_HOST} ^www.nocreativity.com$
# This is the 'ignore file list'. It allows access to all
# files that are needed to display the maintenance mode page.
# Example: pages, css files, js files, images, anything.
# IMPORTANT: If you don't do this properly, visitors will end up with
# endless redirect loops in their browser.
RewriteCond %{REQUEST_URI} !/offline.htm$
RewriteCond %{REQUEST_URI} !/css/style.css$
RewriteCond %{REQUEST_URI} !/images/logo.png$
# Rewrite whatever request is coming in to the maintenance mode page
# The R=302 tells browsers (and search engines) that this
# redirect is only temporarily.
# L stops any other rules below this from executing whenever somebody is redirected.
RewriteRule .*$ /offline.htm [R=302,L]
步骤1：在根目录中创建一个文件'.maintence'，如.htaccess
步骤2：将此代码放入文件中
<?php $upgrading = time();?>
步骤3：保存文件，然后您可以看到默认维护消息"暂时不可用于计划维护。一会儿再回来查看。
如果您想拥有自己的警告消息，请执行以下操作：
创建一个"维护.php"文件并将其放在您的wp内容目录中，wordpress使用此文件在您设置的任何强制维护期间显示。