log

type DefaultLogger struct {
	// contains filtered or unexported fields
}

type Logger interface {
	//EnableLog controls whether print the message.
	EnableLog(bool)

	//IsEnabled returns if logger is enabled.
	IsEnabled() bool

	//Print formats using the default formats for its operands and logs the message.
	Print(...interface{})

	//Printf formats according to a format specifier and logs the message.
	Printf(string, ...interface{})
}