All the code blocks can be copied and used directly (they are actually tested Python files).

To run any of the examples, copy the code to a file `main.py`, and start `fastapi dev` with:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:solid">main.py</u>

  <span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting development server 🚀

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:single">main.py</u>
<font color="#3465A4">INFO    </font> Using path <font color="#3465A4">main.py</font>
<font color="#3465A4">INFO    </font> Resolved absolute path <font color="#75507B">/home/user/code/awesomeapp/</font><font color="#AD7FA8">main.py</font>

Sie könnten beispielsweise eine Datei `config.py` haben mit:

{* ../../docs_src/settings/app01_py39/config.py *}

Und dann verwenden Sie diese in einer Datei `main.py`:

{* ../../docs_src/settings/app01_py39/main.py hl[3,11:13] *}

/// tip | Tipp

# 第一步

最簡單的 FastAPI 檔案可能看起來像這樣：

{* ../../docs_src/first_steps/tutorial001.py *}

將其複製到一個名為 `main.py` 的文件中。

執行即時重新載入伺服器（live server）：

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:single">main.py</u>
<font color="#3465A4">INFO    </font> Using path <font color="#3465A4">main.py</font>

Припустимо, у Вас є структура файлів, описана в розділі [Більші застосунки](bigger-applications.md){.internal-link target=_blank}:

```
.
├── app
│   ├── __init__.py
│   └── main.py
```
У файлі `main.py` знаходиться Ваш застосунок **FastAPI** :

{* ../../docs_src/app_testing/main.py *}

### Файл тестування

                + " It is derived from the main artifact.");
    }

    @Override
    public String getBaseVersion() {
        return parent.getBaseVersion();
    }

    @Override
    public void setBaseVersion(String baseVersion) {
        throw new UnsupportedOperationException("Cannot change the version information for an attached artifact."
                + " It is derived from the main artifact.");
    }

    @Override

  <build>
    <!--
    NOTE: Deliberately set all build directories to relative paths to ensure they really need basedir alignment.
    -->
    <sourceDirectory>src/main/java</sourceDirectory>
    <testSourceDirectory>src/test/java</testSourceDirectory>
    <scriptSourceDirectory>src/main/scripts</scriptSourceDirectory>
    <directory>target</directory>
    <outputDirectory>target/classes</outputDirectory>

```

</div>

/// note | Hinweis

Der Befehl `uvicorn main:app` bezieht sich auf:

* `main`: die Datei `main.py` (das Python-„Modul“).
* `app`: das Objekt, das innerhalb von `main.py` mit der Zeile `app = FastAPI()` erstellt wurde.

Es ist äquivalent zu:

```Python
from main import app
```

///

    * New docs at [Dependencies with `yield`](https://fastapi.tiangolo.com/tutorial/dependencies/dependencies-with-yield/).
    * Updated database docs [SQL (Relational) Databases: Main **FastAPI** app](https://fastapi.tiangolo.com/tutorial/sql-databases/#main-fastapi-app).
    * PR [#595](https://github.com/tiangolo/fastapi/pull/595).

		"${PWD}/mc" cat --vid "${vid}" minio/bucket/testobj | md5sum
	done

	pkill minio
	sleep 3
}

function main() {
	start_port=$(shuf -i 10000-65000 -n 1)

	start_minio_4drive ${start_port}
}

function purge() {
	rm -rf "$1"
}

(main "$@")
rv=$?
purge "$WORK_DIR"