logger

func Debug(args ...interface{})

func Debugf(t string, args ...interface{})

func Error(args ...interface{})

func Errorf(t string, args ...interface{})

func Fatal(args ...interface{})

func Fatalf(t string, args ...interface{})

func Info(args ...interface{})

func Infof(t string, args ...interface{})

func Panic(args ...interface{})

func Panicf(t string, args ...interface{})

func SetLevel(l string)

func Warn(args ...interface{})

func Warnf(t string, args ...interface{})