显示HTTP状态码和HEAD信息↓
HTTP/1.1 200 OK
Server: nginx/1.12.2
Date: Fri, 12 Jul 2024 00:56:37 GMT
Content-Type: text/html
Content-Length: 31137
Last-Modified: Tue, 21 May 2024 07:35:14 GMT
Connection: keep-alive
ETag: "664c4eb2-79a1"
Expires: Fri, 19 Jul 2024 00:56:37 GMT
Cache-Control: max-age=604800
Accept-Ranges: bytes