u-convert | Chuyển đổi qua lại giữa các bảng mã Unicode , VNI , TCVN3

    private static string ByteArrayToHexViaLookup32(byte[] bytes)
    {
        var lookup32 = _lookup32;
        var byteCount = bytes.Length;
        var result = new char[3* byteCount - 1];
        for (int i = 0; i < byteCount; i++)
        {
            var val = lookup32[bytes[i]];
            int index = 3 * i;
            result[index] = (char)val;
            result[index + 1] = (char)(val >> 16);
            if (i < byteCount - 1) result[index + 2] = ' ';
        }
        return new string(result);
    }

    for row in data:
        img_id, label = row.strip("\n").split("#")
        # >>>[ 0.          0.         -0.24604772  0.        ]

        label = label[1:-1] # Cuts the first and last letter
        # >>> 0.          0.         -0.24604772  0.   

        label = label.strip() # Remove all spaces before and after label
        # >>>0.          0.         -0.24604772  0.

        labelElements = label.split() # Cuts the string on every space(s)
        # >>>["0.", "0.", "-0.24604772", "0."]

        labelFloats = []
        for L in labelElements:
            labelFloats.append(float(L)) # for example: "1." -> 1.0