日志格式化输出

Getting started

Logger.instance下方法

void verbose<E>(dynamic message, {String? tag, E? exception})
void debug<E>(dynamic message, {String? tag, E? exception})
void info(dynamic message, {String? tag})
void warning(dynamic message, {String? tag})
void error<E>(dynamic message, {String? tag, E? exception})
void fatal<E>(dynamic message,
      {String? tag, E? exception, dynamic errorMarkedMessage})
void trace(dynamic message, {String? tag})