> godoc -h

usage: godoc -http=localhost:6060
  -goroot string
        Go root directory (default "D:\\Go")
  -http string
        HTTP service address (default "localhost:6060")
  -index
        enable search index
  -index_files string
        glob pattern specifying index files; if not empty, the index is read from these files in sorted order
  -index_interval duration
        interval of indexing; 0 for default (5m), negative to only index once at startup
  -index_throttle float
        index throttle value; 0.0 = no time allocated, 1.0 = full throttle (default 0.75)
  -links
        link identifiers to their declarations (default true)
  -maxresults int
        maximum number of full text search results shown (default 10000)
  -notes string
        regular expression matching note markers to show (default "BUG")
  -play
        enable playground
  -templates string
        load templates/JS/CSS from disk in this directory
  -timestamps
        show timestamps with directory listings
  -url string
        print HTML for named URL
  -v    verbose mode
  -write_index
        write index to a file; the file name must be specified with -index_files
  -zip string
        zip file providing the file system to serve; disabled if empty

// Package bufio implements buffered I/O. It wraps an io.Reader or io.Writer
// object, creating another object (Reader or Writer) that also implements
// the interface but provides buffering and some help for textual I/O.
package bufio

  // BUG(who): 因?yàn)榍懊嬗蠦UG(who)這個(gè)關(guān)鍵字，所以這句注釋就算沒有緊跟關(guān)鍵字不會(huì)被隱藏掉

// Time returns an int64 unix timestamp in milliseconds of the snowflake ID time
// DEPRECATED: the below function will be removed in a future release.
func (f ID) Time() int64 {
	return (int64(f) >> timeShift) + Epoch
}

  example:
      // 123
      //  123

> go doc fmt

package fmt // import "fmt"
Package fmt implements formatted I/O with functions analogous to C's printf
and scanf. The format 'verbs' are derived from C's but are simpler.
Printing
The verbs:
General:

    %v  the value in a default format
        when printing structs, the plus flag (%+v) adds field names
    %#v a Go-syntax representation of the value
    %T  a Go-syntax representation of the type of the value
    %%  a literal percent sign; consumes no value
...
...

// 這是一行注釋
package main

// 不會(huì)被識(shí)別
// 會(huì)被識(shí)別
package main
// 不會(huì)被識(shí)別
 
// 會(huì)被識(shí)別1
// 會(huì)被識(shí)別2
func main(){
}

// 注釋
package main
// BUG(who)  //會(huì)被識(shí)別，放入文檔的Bugs區(qū)
const a = 8

godoc -http=:6060 ? ? //6060是godoc提供的默認(rèn)端口