resolver 8.8.8.8; #必须配置！！！不然无法代理    server {        listen       80 default_server;        listen       [::]:80 default_server;        server_name  _;        root         /usr/share/nginx/html;        # Load configuration files for the default server block.        include /etc/nginx/default.d/*.conf;        location / {            #default_type text/html;                         #正则截取域名前缀，例如www.xxx.com截取只要www            if ( $host ~* (.*)\.(.*)\. ) {                set $domain $1;            }            set $url https://$domain.xxx.com$request_uri;            proxy_pass $url;            #return 200 $domain;            #return 200 $url;        }    }

 复制使用nginx代码最好命令 nginx -t 检查一次。报错的话就自己手动输入，不然会有一些乱码问题；