Debugf records the log with debug level.

EnableErrorStackTrace enables stack trace for ErrorTracef method.

Errorf records the log with error level.

ErrorTracef records the log with stack trace in error level.

Fatalf records the log with fatal level and exits.

Infof records the log with info level.

NewLogger creates default logger.

SetLevel changes the logger level.

SetLogPath sets log file name.

Log level, from low to high, more high means more serious.

Log level, from low to high, more high means more serious.

Log level, from low to high, more high means more serious.

Log level, from low to high, more high means more serious.

Logger represents logging object.

Level type.