---

"_我對 **FastAPI** 興奮得不得了。它太有趣了！_"

<div style="text-align: right; margin-right: 10%;">Brian Okken - <strong><a href="https://pythonbytes.fm/episodes/show/123/time-to-right-the-py-wrongs?time_in_sec=855" target="_blank">Python Bytes</a> podcast host</strong> <a href="https://x.com/brianokken/status/1112220079972728832" target="_blank"><small>(ref)</small></a></div>

---

---

"_Je suis très enthousiaste à propos de **FastAPI**. C'est un bonheur !_"

<div style="text-align: right; margin-right: 10%;">Brian Okken - <strong>Auteur du podcast <a href="https://pythonbytes.fm/episodes/show/123/time-to-right-the-py-wrongs?time_in_sec=855" target="_blank">Python Bytes</a></strong> <a href="https://x.com/brianokken/status/1112220079972728832" target="_blank"><small>(ref)</small></a></div>

---

        String domain = "DOMAIN";
        netServerEnum2 = new NetServerEnum2(realConfig, domain, NetServerEnum2.SV_TYPE_ALL);

        // Test with very small buffer
        byte[] dst = new byte[10]; // Too small for the full parameters

        // Should throw ArrayIndexOutOfBoundsException
        assertThrows(ArrayIndexOutOfBoundsException.class, () -> {
            netServerEnum2.writeParametersWireFormat(dst, 0);
        });

Algunos de ellos también ✨ [**sponsorean FastAPI**](../help-fastapi.md#sponsor-the-author){.internal-link target=_blank} ✨, esto asegura el **desarrollo** continuo y saludable de FastAPI y su **ecosistema**.

// 在此之後這個環境變數將不再存在
$ python main.py

Hello World from Python
```

</div>

/// tip

你可以在 <a href="https://12factor.net/zh_cn/config" class="external-link" target="_blank">The Twelve-Factor App: 配置</a>中了解更多資訊。

///

## 型別和驗證

這些環境變數只能處理**文字字串**，因為它們是位於 Python 範疇之外的，必須與其他程式和作業系統的其餘部分相容（甚至與不同的作業系統相容，如 Linux、Windows、macOS）。

```Python hl_lines="1"
async def get_burgers(number: int):
    # Do some asynchronous stuff to create the burgers
    return burgers
```

...↩️ `def`:

```Python hl_lines="2"
# This is not asynchronous
def get_sequential_burgers(number: int):
    # Do some sequential stuff to create the burgers
    return burgers
```

			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 *BucketMetadata) Msgsize() (s int) {

// Copyright 2018 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
	AND	$1, RSP                                          // ERROR "illegal source register"
	ANDS	$1, R0, RSP                                      // ERROR "illegal combination"
	ADDSW	R7->32, R14, R13                                 // ERROR "shift amount out of range 0 to 31"

#### Dados com valores para campos com padrões

Mas se seus dados tiverem valores para os campos do modelo com valores padrões, como o item com ID `bar`:

```Python hl_lines="3 5"
{
"name": "Bar",
"description": "The bartenders",
"price": 62,
"tax": 20.2
}
```

eles serão incluídos na resposta.

#### Dados com os mesmos valores que os padrões

///

#### 📊 ⏮️ 💲 🏑 ⏮️ 🔢

✋️ 🚥 👆 📊 ✔️ 💲 🏷 🏑 ⏮️ 🔢 💲, 💖 🏬 ⏮️ 🆔 `bar`:

```Python hl_lines="3  5"
{
    "name": "Bar",
    "description": "The bartenders",
    "price": 62,
    "tax": 20.2
}
```

👫 🔜 🔌 📨.

#### 📊 ⏮️ 🎏 💲 🔢

🚥 📊 ✔️ 🎏 💲 🔢 🕐, 💖 🏬 ⏮️ 🆔 `baz`:

```Python hl_lines="3  5-6"
{