1
2
3

func Println(v ...interface{}) {
	std.Output(2, fmt.Sprintln(v...))
}

1

log.Println("打印日志信息")

1
2
3
4
5
6

// Panicln is equivalent to Println() followed by a call to panic().
func Panicln(v ...interface{}) {
	s := fmt.Sprintln(v...)
	std.Output(2, s)
	panic(s)
}

1

log.Panicln("打印日志信息")

1
2
3
4
5

// Fatal is equivalent to Print() followed by a call to os.Exit(1).
func Fatal(v ...interface{}) {
	std.Output(2, fmt.Sprint(v...))
	os.Exit(1)
}

1

log.Fatal("打印日志信息")

1
2
3
4
5
6
7
8
9

const (
	Ldate         = 1 << iota     // the date in the local time zone: 2009/01/23
	Ltime                         // the time in the local time zone: 01:23:23
	Lmicroseconds                 // microsecond resolution: 01:23:23.123123.  assumes Ltime.
	Llongfile                     // full file name and line number: /a/b/c/d.go:23
	Lshortfile                    // final file name element and line number: d.go:23. overrides Llongfile
	LUTC                          // if Ldate or Ltime is set, use UTC rather than the local time zone
	LstdFlags     = Ldate | Ltime // initial values for the standard logger
)

1
2
3
4

	f, _ := os.OpenFile("D:/golog.log", os.O_APPEND|os.O_CREATE, 07777)
	defer f.Close()
	logger := log.New(f, "[info]\t", log.Ltime)
	logger.Println("输出日志信息")