显示HTTP状态码和HEAD信息↓
HTTP/1.0 302 Moved Temporarily
Location: https://www.csu.edu.cn/
Server: BigIP
Connection: Keep-Alive
Content-Length: 0
HTTP/1.1 200 OK
Date: Sun, 28 Apr 2024 07:36:21 GMT
Server: *********
X-Frame-Options: SAMEORIGIN
Last-Modified: Sun, 28 Apr 2024 02:08:09 GMT
Accept-Ranges: bytes
Content-Length: 124315
Cache-Control: max-age=600
Expires: Sun, 28 Apr 2024 07:46:21 GMT
Vary: Accept-Encoding
ETag: "1e59b-6171e9bb76750-gzip"
Keep-Alive: timeout=5, max=80
Connection: close
Content-Type: text/html
Content-Language: zh-CN