t.Log("1: server payload: ", len(payload), "bytes.")
		return append([]byte{}, payload...), nil
	}))
	// 2: Return as error
	errFatal(local.RegisterSingleHandler(handlerTest2, func(payload []byte) ([]byte, *RemoteErr) {
		t.Log("2: server payload: ", len(payload), "bytes.")
		err := RemoteErr(payload)
		return nil, &err
	}))

		}
		hdrs = append(hdrs, hdr)

		// If a special flag, we should read nothing.
		cnt, _ := io.ReadFull(tr, []byte{0})
		if cnt > 0 && hdr.Typeflag != TypeReg {
			t.Errorf("ReadFull(...): got %d bytes, want 0 bytes", cnt)
		}
	}

	// File is crafted with 16 entries. The later 8 are identical to the first
	// 8 except that the size is set.
	if len(hdrs) != 16 {
		t.Fatalf("len(hdrs): got %d, want %d", len(hdrs), 16)

## 定义 `File` 与 `Form` 参数

创建文件和表单参数的方式与 `Body` 和 `Query` 一样：

{* ../../docs_src/request_forms_and_files/tutorial001.py hl[8] *}

文件和表单字段作为表单数据上传与接收。

声明文件可以使用 `bytes` 或 `UploadFile` 。

/// warning | 警告

可在一个*路径操作*中声明多个 `File` 与 `Form` 参数，但不能同时声明要接收 JSON 的 `Body` 字段。因为此时请求体的编码为 `multipart/form-data`，不是 `application/json`。

这不是 **FastAPI** 的问题，而是 HTTP 协议的规定。

///

## 小结

	srcDataDir := latestMeta.DataDir
	dstDataDir := latestMeta.DataDir
	if latestMeta.XLV1 {
		dstDataDir = migrateDataDir
	}

	var inlineBuffers []*bytes.Buffer
	if !latestMeta.Deleted && !latestMeta.IsRemote() {
		if latestMeta.InlineData() {
			inlineBuffers = make([]*bytes.Buffer, len(outDatedDisks))
		}

		erasureInfo := latestMeta.Erasure
		for partIndex := 0; partIndex < len(latestMeta.Parts); partIndex++ {

			bts, err = msgp.Skip(bts)
			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}
	}
	o = bts
	return
}

// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
func (z *nsScannerOptions) Msgsize() (s int) {
	s = 1 + 3 + msgp.StringPrefixSize + len(z.DiskID) + 2 + msgp.IntSize + 2
	if z.Cache == nil {
		s += msgp.NilSize
	} else {

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package main

import (
	"bytes"
	"context"
	"crypto/sha256"
	"flag"
	"fmt"
	"hash"
	"io"
	"log"
	"net/url"
	"os"
	"strings"
	"sync"
	"time"

	"github.com/minio/minio-go/v7"

{* ../../docs_src/request_forms_and_files/tutorial001_an_py39.py hl[10:12] *}

The files and form fields will be uploaded as form data and you will receive the files and form fields.

And you can declare some of the files as `bytes` and some as `UploadFile`.

/// warning

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"bytes"
	"context"
	"encoding/hex"
	"errors"
	"fmt"
	"io"
	"net/http"
	"net/url"
	"path"
	"strconv"
	"strings"
	"sync/atomic"
	"time"

	"github.com/minio/madmin-go/v3"

`secrets.compare_digest()` 需要仅包含 ASCII 字符（英语字符）的 `bytes` 或 `str`，这意味着它不适用于像`á`一样的字符，如 `Sebastián`。

为了解决这个问题，我们首先将 `username` 和 `password` 转换为使用 UTF-8 编码的 `bytes` 。

然后我们可以使用 `secrets.compare_digest()` 来确保 `credentials.username` 是 `"stanleyjobson"`，且 `credentials.password` 是`"swordfish"`。

Die Datei- und Formularfelder werden als Formulardaten hochgeladen, und Sie erhalten diese Dateien und Formularfelder.

Und Sie können einige der Dateien als `bytes` und einige als `UploadFile` deklarieren.

/// warning | Achtung