以int為例

    ///小端轉(zhuǎn)大端
    final littleData = ByteData(4);
    littleData.setInt32(0, 59, Endian.little);
    print("大端：${littleData.getInt32(0, Endian.big)}");

    ///大端轉(zhuǎn)小端
    final bigData = ByteData(4);
    bigData.setInt32(0, 98, Endian.big);
    print("小端：${bigData.getInt32(0, Endian.little)}");