fileLogger.go
func NewDailyLogger(fileDir, fileName, prefix string, logScan int64, logSeq int) *FileLogger {
	dailyLogger := &FileLogger{
		splitType:  SplitType_Daily,
		mu:         new(sync.RWMutex),
		fileDir:    fileDir,
		fileName:   fileName,
		prefix:     prefix,
		logScan:    logScan,
		logChan:    make(chan string, logSeq),
		logLevel:   DEFAULT_LOG_LEVEL,
		logConsole: false,
	}

	dailyLogger.initLogger()

	return dailyLogger
}
func NewDailyLogger(fileDir, fileName, prefix string, logScan int64, logSeq int) *FileLogger {
	dailyLogger := &FileLogger{
		splitType:  SplitType_Daily,
		mu:         new(sync.RWMutex),
		fileDir:    fileDir,
		fileName:   fileName,
		prefix:     prefix,
		logScan:    logScan,
		logChan:    make(chan string, logSeq),
		logLevel:   DEFAULT_LOG_LEVEL,
		logConsole: false,
	}

	dailyLogger.initLogger()

	return dailyLogger
}
// NewDailyLogger return a logger split by daily
// Parameters:
// 		file directory
// 		file name
// 		log's prefix