urls

https://golang.org/
https://golang.org/project/
https://golang.org/doc/
https://golang.org/doc/install
https://golang.org/doc/cmd
https://golang.org/ref/spec
https://golang.org/pkg/
https://golang.org/pkg/bufio/
https://
abcdefg
https://golang.org/pkg/compress/gzip/
https://golang.org/pkg/builtin/
https://golang.org/pkg/bytes/
https://golang.org/pkg/encoding/
https://golang.org/pkg/errors/
https://golang.org/pkg/flag/
1234565
https://golang.org/pkg/fmt/
https://golang.org/pkg/io/ioutil/
https://golang.org/pkg/net/http/
https://blog.golang.org/pipelines
https://blog.golang.org/protobuf-apiv2
https://blog.golang.org/go1.14
https://gobyexample.com/
golang.org
https://gobyexample.com/select
https://gobyexample.com/channel-buffering
https://gobyexample.com/goroutines
https://gobyexample.com/channels
https://gobyexample.com/structs
https://gobyexample.com/interfaces