Это связано с тем, что **OAuth2** использует «данные формы» для отправки `username` и `password`.

///

Запустите пример командой:

<div class="termy">

```console
$ fastapi dev

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

</div>

## Проверка { #check-it }

## 运行服务器程序 { #run-the-server-program }

如果您手动安装了 ASGI 服务器，通常需要以特定格式传递一个导入字符串，以便服务器能够正确导入您的 FastAPI 应用：

<div class="termy">

```console
$ uvicorn main:app --host 0.0.0.0 --port 80

<span style="color: green;">INFO</span>:     Uvicorn running on http://0.0.0.0:80 (Press CTRL+C to quit)
```

</div>

/// note | 注意

命令 `uvicorn main:app` 的含义如下：

* `main`：指的是 `main.py` 文件（即 Python “模块”）。

ASGI 서버를 수동으로 설치했다면, 보통 FastAPI 애플리케이션을 임포트하기 위해 특별한 형식의 import string을 전달해야 합니다:

<div class="termy">

```console
$ uvicorn main:app --host 0.0.0.0 --port 80

<span style="color: green;">INFO</span>:     Uvicorn running on http://0.0.0.0:80 (Press CTRL+C to quit)
```

</div>

/// note | 참고

`uvicorn main:app` 명령은 다음을 가리킵니다:

* `main`: 파일 `main.py`(Python "module").

```

This is because **OAuth2** uses "form data" for sending the `username` and `password`.

///

Run the example with:

<div class="termy">

```console
$ fastapi dev

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

</div>

## Check it { #check-it }

Go to the interactive docs at: [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs).

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[66:73] hl[71] *}

### 執行應用 { #run-the-app }

你可以執行應用：

<div class="termy">

```console
$ fastapi dev

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

</div>

然後前往 `/docs` 的 UI，你會看到 FastAPI 使用這些模型來「文件化」API，也會用它們來「序列化」與「驗證」資料。

<div class="screenshot">

<div align="center">
  <picture>
    <source media="(prefers-color-scheme: dark)" srcset="images/gradle-white-primary.png" width="600px">
    <img alt="Gradle Logo" src="images/gradle-dark-green-primary.png" width="600px">
  </picture>
</div>

<div align="center">
  <a href="https://ge.gradle.org/scans">
    <img src="https://img.shields.io/badge/Revved%20up%20by-Develocity-06A0CE?logo=Gradle&labelColor=02303A" alt="Revved up by Develocity">
  </a>

///

Führen Sie das Beispiel aus mit:

<div class="termy">

```console
$ fastapi dev

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

</div>

## Es testen { #check-it }

<div class="termy">

```console
$ ADMIN_EMAIL="******@****.***" APP_NAME="ChimichangApp" fastapi run main.py

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

</div>

/// tip | Совет

 * <li>the unreleased <b>maintenance</b>, M-1.d.e ( d &gt; 0, e &gt; 0) on the `(M-1).d` branch</li>
 * </ul>
 * In addition to these, there will be a fifth one when a minor reaches feature freeze, we call this the <i>staged</i>
 * version:
 * <ul>
 * <li>the unreleased <b>staged</b>, M.N-2.0 (N &gt; 2) on the `M.(N-2)` branch</li>
 * </ul>
 * <p>

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[66:73] hl[71] *}

### 运行应用 { #run-the-app }

你可以运行这个应用：

<div class="termy">

```console
$ fastapi dev

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

</div>

然后在 `/docs` UI 中，你能够看到 **FastAPI** 会用这些**模型**来**记录** API，并且还会用它们来**序列化**和**验证**数据。

<div class="screenshot">