view code return

Request Header Example

host bce.ac.cn
accept-encoding x-gzip, gzip, deflate
user-agent CCBot/2.0 (http://commoncrawl.org/faq/)
accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
if-modified-since Sun, 27 May 2018 15:17:10 GMT
connection close