setter.go
func (f *FileLogger) SetMaxFileCount(count int) int {
	f.fileCount = count
	return f.fileCount
}
func (f *FileLogger) SetMaxFileCount(count int) int {
	f.fileCount = count
	return f.fileCount
}
func ( f * FileLogger ) SetMaxFileCount ( count int ) int { f . fileCount = count return f . fileCount }
// Change the sizeSplit fileLogger's bak file count
Change the sizeSplit fileLogger s bak file count