package log import ( "fmt" "os" "sync" ) var ( nilLogger = func(prefix, timestamp, msg string, data ...any) {} normalLogger = func(prefix, timestamp, msg string, data ...any) { fmt.Printf(prefix+"| "+timestamp+" | "+msg+"\n", data...) } defaultLogger = &logger{ Mutex: sync.Mutex{}, timeFormat: "2006-01-02T15:04:05", writer: os.Stdout, level: LogLevelInfo, debug: nilLogger, info: normalLogger, warn: normalLogger, error: normalLogger, } ) func init() { } func SetTimeFormat(format string) { defaultLogger.SetTimeFormat(format) } func SetLogLevel(level LogLevel) { defaultLogger.SetLogLevel(level) }