显示HTTP状态码和HEAD信息↓
HTTP/1.1 200 OK
Server: nginx
Date: Sun, 16 Jun 2024 14:19:34 GMT
Content-Type: text/html
Content-Length: 75966
Last-Modified: Wed, 15 May 2024 14:47:57 GMT
Connection: keep-alive
Vary: Accept-Encoding
ETag: "6644cb1d-128be"
Accept-Ranges: bytes