<details markdown="1">
<summary>À propos de la commande <code>uvicorn main:app --reload</code> ...</summary>

La commande `uvicorn main:app` fait référence à :

* `main` : le fichier `main.py` (le "module" Python).
* `app` : l'objet créé à l'intérieur de `main.py` avec la ligne `app = FastAPI()`.
* `--reload` : fait redémarrer le serveur après des changements de code. À n'utiliser que pour le développement.

</details>

INFO:     Application startup complete.
```

</div>

<details markdown="1">
<summary>關於指令 <code>uvicorn main:app --reload</code>...</summary>

該指令 `uvicorn main:app` 指的是：

- `main`：`main.py` 檔案（一個 python 的 "模組"）。
- `app`：在 `main.py` 檔案中，使用 `app = FastAPI()` 建立的物件。
- `--reload`：程式碼更改後會自動重新啟動，請僅在開發時使用此參數。

</details>

### 檢查

  /*
   * Ideally, this class would have exposed only constructors that require a non-null cause. See
   * https://github.com/jspecify/jspecify-reference-checker/blob/61aafa4ae52594830cfc2d61c8b113009dbdb045/src/main/java/com/google/jspecify/nullness/NullSpecTransfer.java#L789
   * and https://github.com/jspecify/jspecify/issues/490.
   *
   * (That would also have ensured that its cause was always an Error, rather than possibly another

        findLatest("slf4j", "org.slf4j:slf4j-api:(1.7,)", versionProperties)

        // Starting with ScalaTest 3.1.0, the third party integration were moved out of the main JAR
        findLatest("scalatest", "org.scalatest:scalatest_${versionProperties["scala"]}:(3.0,)", versionProperties)

👆 🔝-🎚 🈸, `app`, 🗻 🎧-🈸, `subapi`.

👉 💼, ⚫️ 🔜 📌 ➡ `/subapi`:

```Python hl_lines="11  19"
{!../../docs_src/sub_applications/tutorial001.py!}
```

### ✅ 🏧 🛠️ 🩺

🔜, 🏃 `uvicorn` ⏮️ 👑 📱, 🚥 👆 📁 `main.py`, ⚫️ 🔜:

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

          <basedir>${project.basedir}/../../api/maven-api-toolchain</basedir>
          <velocityBasedir>${project.basedir}/../../src/mdo</velocityBasedir>
          <models>
            <model>src/main/mdo/toolchains.mdo</model>
          </models>
        </configuration>
        <executions>
          <execution>
            <id>velocity</id>
            <goals>
              <goal>velocity</goal>

map:{
    # base package of generated classes
    ; basePackage = org.codelibs.fess.es

    # base path to JSON resource, URL or relative path
    ; basePath = ../src/main/config/es

    # settings for indexes
    ; indexMap = map:{
        # Index: fess_user
        ; fess_user.group = map:{
            ; package = user
            ; esclientDiFile = esclient.xml
            ; esfluteDiFile = esflute_user.xml
        }

karenanya
ke
kecil
kemudian
kenapa
kepada
kepadanya
ketika
seketika
khususnya
kini
kinilah
kiranya
sekiranya
kita
kitalah
kok
lagi
lagian
selagi
lah
lain
lainnya
melainkan
selaku
lalu
melalui
terlalu
lama
lamanya
selama
selama
selamanya
lebih
terlebih
bermacam
macam
semacam
maka
makanya
makin
malah

received from Go. For example:

	package main

	// typedef int (*intFunc) ();
	//
	// int
	// bridge_int_func(intFunc f)
	// {
	//		return f();
	// }
	//
	// int fortytwo()
	// {
	//	    return 42;
	// }
	import "C"
	import "fmt"

	func main() {
		f := C.intFunc(C.fortytwo)
		fmt.Println(int(C.bridge_int_func(f)))
		// Output: 42

## Как это выглядит

Давайте сначала просто воспользуемся кодом и посмотрим, как он работает, а затем детально разберём, что происходит.

## Создание `main.py`

Скопируйте пример в файл `main.py`:

//// tab | Python 3.9+

```Python
{!> ../../docs_src/security/tutorial001_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python