@Override
    public Hasher putByte(byte b) {
      update(1, b & 0xFF);
      return this;
    }

    @CanIgnoreReturnValue
    @Override
    public Hasher putBytes(byte[] bytes, int off, int len) {
      checkPositionIndexes(off, off + len, bytes.length);
      int i;
      for (i = 0; i + 4 <= len; i += 4) {
        update(4, getIntLittleEndian(bytes, off + i));
      }
      for (; i < len; i++) {

        byte[] src = new byte[10];
        int srcIndex = 0;

        // Simulate groupName = false, nodeType = 0
        src[srcIndex] = (byte) 0x00;
        src[srcIndex + 1] = (byte) 0x00;

        // Simulate address = 0.0.0.0
        src[srcIndex + 2] = (byte) 0x00;
        src[srcIndex + 3] = (byte) 0x00;
        src[srcIndex + 4] = (byte) 0x00;
        src[srcIndex + 5] = (byte) 0x00;

    public TemporaryFolder tempFolder = new TemporaryFolder();

    /**
     * @throws Exception
     */
    @Test
    public void testFileToFile() throws Exception {
        final byte[] bytes = readBytes(inputFile);
        assertThat(bytes, is("あいうえお".getBytes("UTF-8")));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testReadUTF8() throws Exception {

// MarshalMsg implements msgp.Marshaler
func (z rebalanceMetrics) MarshalMsg(b []byte) (o []byte, err error) {
	o = msgp.Require(b, z.Msgsize())
	// map header, size 0
	_ = z
	o = append(o, 0x80)
	return
}

// UnmarshalMsg implements msgp.Unmarshaler
func (z *rebalanceMetrics) UnmarshalMsg(bts []byte) (o []byte, err error) {
	var field []byte
	_ = field
	var zb0001 uint32

					r, err := file.Open()
					if err != nil {
						return err
					}

					b, err := io.ReadAll(r)
					if err != nil {
						return err
					}
					buf := bytes.NewBuffer(nil)
					if _, err = msgp.CopyToJSON(buf, bytes.NewReader(b)); err != nil {
						return err
					}

					dec := json.NewDecoder(buf)
					// Use number to preserve integers.
					dec.UseNumber()
					var htr map[string]any

     */
    public static Object fromBinaryToObject(final byte[] bytes, final ObjectInputFilter filter) {
        assertArgumentNotEmpty("bytes", bytes);

        try {
            final ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
            final ObjectInputStream ois = new ObjectInputStream(bais);
            if (filter != null) {

        }
    }

    /**
     * Writes the specified byte array to the file at the given pathname.
     *
     * @param pathname
     *            The path to the file.
     * @param bytes
     *            The byte array to write.
     */
    public static void writeBytes(final String pathname, final byte[] bytes) {
        try (FileOutputStream fos = OutputStreamUtil.create(new File(pathname))) {

      if (type == TYPE_A || type == TYPE_AAAA) {
        val bytes = ByteArray(length)
        buf.read(bytes)
        result.add(InetAddress.getByAddress(bytes))
      } else {
        buf.skip(length.toLong())
      }
    }

    return result
  }

  @Throws(EOFException::class)
  private fun skipName(source: Buffer) {
    // 0 - 63 bytes
    var length = source.readByte().toInt()

///

檔案會以「表單資料」上傳。

如果你將路徑操作函式（path operation function）的參數型別宣告為 `bytes`，**FastAPI** 會替你讀取檔案，你會以 `bytes` 取得內容。

請注意，這表示整個內容會存放在記憶體中，適合小檔案。

但在許多情況下，使用 `UploadFile` 會更好。

## 使用 `UploadFile` 的檔案參數 { #file-parameters-with-uploadfile }

將檔案參數型別設為 `UploadFile`：

{* ../../docs_src/request_files/tutorial001_an_py310.py hl[14] *}

使用 `UploadFile` 相較於 `bytes` 有數個優點：

* 你不必在參數的預設值使用 `File()`。
* 它使用「spooled」檔案：

     * Base-64 encodes the supplied block of data.  Line wrapping is not
     * applied on output.
     *
     * @param bytes The block of data that is to be Base-64 encoded.
     * @return A <code>String</code> containing the encoded data.
     */
    public static String encode(final byte[] bytes) {
        int length = bytes.length;
        if (length == 0) {
            return "";
        }