Logs are generally divided into the following levels. debug, info, Warring, error, fatal, the level increases one by one
| grade | name | Importance |
|---|---|---|
| Debug | neglect | ☆ |
| Info | generally | ☆☆ |
| Warn | warn | ☆☆☆ |
| Error | mistake | ☆☆☆☆ |
| Fatal | fatal | ☆☆☆☆☆ |
A grade is higher than a