参考网站：https://catonmat.net/cookbooks/curl/add-http-headers

    1. curl -X GET -A 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36' -d '<?xml version="1.0" encoding = "UTF-8"?><COM><REQ name="上海-悠悠"><USER_ID>yoyoketang</USER_ID><COMMODITY_ID>123456</COMMODITY_ID><SESSION_ID>absbnmasbnfmasbm1213</SESSION_ID></REQ></COM>' -H 'Content-Type: text/xml' http://httpbin.org
    4. curl -H "\"Accept-Language\":\"en-US\"" -X GET -A "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36" -d "<?xml version=\"1.0\" encoding = \"UTF-8\"?><COM><REQ name=\"上海-悠悠\"><USER_ID>yoyoketang</USER_ID><COMMODITY_ID>123456</COMMODITY_ID><SESSION_ID>absbnmasbnfmasbm1213</SESSION_ID></REQ></COM>" -H "Content-Type: text/xml" http://httpbin.org