一个小应用

https://dart.cn/tutorials/server/get-started#3-create-a-small-app

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dart create -t console dart_tmp

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import 'package:dart_tmp/dart_tmp.dart' as dart_tmp;
import 'dart:async';
import 'dart:io';
import 'dart:math';
import 'dart:typed_data';
import 'dart:convert';

void main(List<String> arguments) async {
  for (var i = 1; i < 70; i++) {
    var filePath = "/Users/nocilantro/Desktop/log_desktop_proxy/test${i}.bin";
    File file = new File(filePath);
    Uint8List fileBytes = await file.readAsBytes();
    try {
      String str = utf8.decode(fileBytes, allowMalformed: true);
      str = str.substring(4, str.length);
      var u8data = utf8.encode(str);
      print('$str\n');
    } catch (e) {
      print('error: $e');
    }
  }
}

添加依赖: 

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dependencies:
  # path: ^1.8.0
  msgpack_dart: ^1.0.1