formatTimestamp static method
格式化时间戳为yyyy-MM-dd HH:mm:ss.sss格式
Implementation
static String formatTimestamp(timestamp) {
DateTime date = DateTime.fromMillisecondsSinceEpoch(timestamp);
String formattedDate = '${date.year}-${date.month.toString().padLeft(2, '0')}-${date.day.toString().padLeft(2, '0')} '
'${date.hour.toString().padLeft(2, '0')}:${date.minute.toString().padLeft(2, '0')}:${date.second.toString().padLeft(2, '0')}.${date.millisecond.toString().padLeft(3, '0')}';
return formattedDate;
}