Debug calls Output to print to the standard logger.

Debugf calls Output to print to the standard logger.

Debugln calls Output to print to the standard logger.

Default returns the standard logger used by the package-level output functions.

Error calls Output to print to the standard logger.

Errorf calls Output to print to the standard logger.

Errorln calls Output to print to the standard logger.

Fatal is equivalent to Print() followed by a call to os.Exit(1).

Fatalf is equivalent to Printf() followed by a call to os.Exit(1).

Fatalln is equivalent to Println() followed by a call to os.Exit(1).

Flags returns the output flags for the standard logger.

Info calls Output to print to the standard logger.

Infof calls Output to print to the standard logger.

Infoln calls Output to print to the standard logger.

New creates a new Logger.

Output writes the output for a logging event.

Panic is equivalent to Print() followed by a call to panic().

Panicf is equivalent to Printf() followed by a call to panic().

Panicln is equivalent to Println() followed by a call to panic().

SetFlags sets the output flags for the standard logger.

Warn calls Output to print to the standard logger.

Warnf calls Output to print to the standard logger.

Warnln calls Output to print to the standard logger.

the date in the local time zone: 2009/01/23.

function name.

full file name and line number: /a/b/c/d.go:23.

microsecond resolution: 01:23:23.123123.

move the "prefix" from the beginning of the line to before the message.

final file name element and line number: d.go:23.

initial values for the standard logger.

the time in the local time zone: 01:23:23.

if Ldate or Ltime is set, use UTC rather than the local time zone.

A Logger represents an active logging object that generates lines of output to an io.Writer.