首先搜索bootstrap4菜鸟教程找到Bootstrap 4 CDN
复制粘贴效果如图
flock(): Argument #1 ($stream) must be of type resource, false givenTypeError: flock(): Argument #1 ($stream) must be of type resource, false given in /nuoyis-web/nginx/webside/friend/yhd/blog/usr/themes/butterfly/functions.php:1697 Stack trace: #0 /nuoyis-web/nginx/webside/friend/yhd/blog/usr/themes/butterfly/functions.php(1697): flock() #1 /nuoyis-web/nginx/webside/friend/yhd/blog/usr/themes/butterfly/post_sidebar.php(141): onlinePeople() #2 /nuoyis-web/nginx/webside/friend/yhd/blog/var/Widget/Archive.php(1336): require('...') #3 /nuoyis-web/nginx/webside/friend/yhd/blog/usr/themes/butterfly/post.php(220): Widget\Archive->need() #4 /nuoyis-web/nginx/webside/friend/yhd/blog/var/Widget/Archive.php(1418): require_once('...') #5 /nuoyis-web/nginx/webside/friend/yhd/blog/var/Typecho/Router.php(99): Widget\Archive->render() #6 /nuoyis-web/nginx/webside/friend/yhd/blog/index.php(23): Typecho\Router::dispatch() #7 {main}
