* // -> ["a", "c", "b"]
   * // -> ["b", "a", "c"]
   * // -> ["b", "c", "a"]
   * // -> ["c", "a", "b"]
   * // -> ["c", "b", "a"]
   *
   * for (List<Integer> perm : orderedPermutations(asList(1, 2, 2, 1))) {
   *   println(perm);
   * }
   * // -> [1, 1, 2, 2]
   * // -> [1, 2, 1, 2]
   * // -> [1, 2, 2, 1]
   * // -> [2, 1, 1, 2]
   * // -> [2, 1, 2, 1]
   * // -> [2, 2, 1, 1]
   * }
   *

También podemos agregar *path operations* directamente a la aplicación de `FastAPI`.

Aquí lo hacemos... solo para mostrar que podemos 🤷:

{* ../../docs_src/bigger_applications/app_an_py39/main.py hl[21:23] title["app/main.py"] *}

y funcionará correctamente, junto con todas las otras *path operations* añadidas con `app.include_router()`.

/// info | Detalles Muy Técnicos

Também podemos adicionar *operações de rota* diretamente ao aplicativo `FastAPI`.

Aqui fazemos isso... só para mostrar que podemos 🤷:

{* ../../docs_src/bigger_applications/app_an_py39/main.py hl[21:23] title["app/main.py"] *}

e funcionará corretamente, junto com todas as outras *operações de rota* adicionadas com `app.include_router()`.

/// note | Detalhes Técnicos Avançados

pyelftools==0.32 \
    --hash=sha256:013df952a006db5e138b1edf6d8a68ecc50630adbd0d83a2d41e7f846163d738 \
    --hash=sha256:6de90ee7b8263e740c8715a925382d4099b354f29ac48ea40d840cf7aa14ace5
    # via auditwheel
pygments==2.19.1 \
    --hash=sha256:61c16d2a8576dc0649d9f39e089b5f02bcd27fba10d8fb4dcc28173f7a45151f \
    --hash=sha256:9ea1544ad55cecf4b8242fab6dd35a93bbce657034b0611ee383099054ab6d8c
    # via rich
requests==2.32.4 \

    testRotate(new short[] {1, 2}, -3, new short[] {2, 1});
    testRotate(new short[] {1, 2}, -1, new short[] {2, 1});
    testRotate(new short[] {1, 2}, -2, new short[] {1, 2});
    testRotate(new short[] {1, 2}, 0, new short[] {1, 2});
    testRotate(new short[] {1, 2}, 1, new short[] {2, 1});
    testRotate(new short[] {1, 2}, 2, new short[] {1, 2});

//	}
//	var sph sparseHoles = []sparseEntry{
//		{Offset: 0,  Length: 2},  // Hole fragment for 0..1
//		{Offset: 7,  Length: 11}, // Hole fragment for 7..17
//		{Offset: 21, Length: 4},  // Hole fragment for 21..24
//	}
//
// Then the content of the resulting sparse file with a Header.Size of 25 is:
//
//	var sparseFile = "\x00"*2 + "abcde" + "\x00"*11 + "fgh" + "\x00"*4
type (
	sparseDatas []sparseEntry

但这只会影响我们应用中的 `APIRouter`，而不会影响使用它的任何其他代码。

因此，举例来说，其他项目能够以不同的身份认证方法使用相同的 `APIRouter`。

### 包含一个*路径操作*

我们还可以直接将*路径操作*添加到 `FastAPI` 应用中。

这里我们这样做了...只是为了表明我们可以做到🤷：

```Python hl_lines="21-23" title="app/main.py"
{!../../docs_src/bigger_applications/app/main.py!}
```

它将与通过 `app.include_router()` 添加的所有其他*路径操作*一起正常运行。

/// info | 特别的技术细节

**注意**：这是一个非常技术性的细节，你也许可以**直接跳过**。

---

/*
 * MinIO Object Storage (c) 2021 MinIO, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

TEXT errors(SB),$0
	CSRRC	(X10), CYCLE, X5		// ERROR "integer register or immediate expected for 1st operand"
	CSRRC	X0, TU, X5			// ERROR "unknown CSR"
	CSRRC	X0, CYCLE			// ERROR "missing CSR name"
	CSRRC	X0, CYCLE, (X10)		// ERROR "needs an integer register output"

	EnableOff = madmin.EnableOff

	RegionKey  = "region"
	NameKey    = "name"
	RegionName = "name"
	AccessKey  = "access_key"
	SecretKey  = "secret_key"
	License    = "license" // Deprecated Dec 2021
	APIKey     = "api_key"
	Proxy      = "proxy"
)

// Top level config constants.
const (
	PolicyOPASubSys      = madmin.PolicyOPASubSys
	PolicyPluginSubSys   = madmin.PolicyPluginSubSys