新版的宝塔BT面板，已经支持nginx1.15了，直接在“软件管理”页面切换nginx1.15即可。
然后在网站的配置文件加上TLSv1.3相关配置就可以了。ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
#ssl_ciphers EECDH+CHACHA20:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5;
ssl_ciphers TLS13-AES-256-GCM-SHA384:TLS13-CHACHA20-POLY1305-SHA256:TLS13-AES-128-GCM-SHA256:TLS13-AES-128-CCM-8-SHA256:TLS13-AES-128-CCM-SHA256:EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+ECDSA+AES128:EECDH+aRSA+AES128:RSA+AES128:EECDH+ECDSA+AES256:EECDH+aRSA+AES256:RSA+AES256:EECDH+ECDSA+3DES:EECDH+aRSA+3DES:RSA+3DES:!MD5;