Imports github.com/guonaihong/flag github.com/guonaihong/gurl/gurlib github.com/guonaihong/gurl/gurlib/url github.com/guonaihong/gurl/input github.com/guonaihong/gurl/output github.com/guonaihong/gurl/task Standard library imports encoding/json fmt io io/ioutil net net/http net/url os runtime strings syscall time