有了它，你可以直接与**FastAPI**一起使用 [pytest](https://docs.pytest.org/)。

## 使用 `TestClient` { #using-testclient }

/// info | 信息

要使用 `TestClient`，先要安装 [`httpx`](https://www.python-httpx.org)。

确保你创建并激活一个[虚拟环境](../virtual-environments.md)，然后再安装，例如：

```console
$ pip install httpx
```

///

导入 `TestClient`。

通过传入你的**FastAPI**应用创建一个 `TestClient` 。

创建名字以 `test_` 开头的函数（这是标准的 `pytest` 约定）。

/// info | Info

Um hochgeladene Dateien und/oder Formulardaten zu empfangen, installieren Sie zuerst [`python-multipart`](https://github.com/Kludex/python-multipart).

Stellen Sie sicher, dass Sie eine [virtuelle Umgebung](../virtual-environments.md) erstellen, diese aktivieren und es dann installieren, z. B.:

```console
$ pip install python-multipart
```

///

## `File` und `Form` importieren { #import-file-and-form }

# 请求表单与文件 { #request-forms-and-files }

FastAPI 支持同时使用 `File` 和 `Form` 定义文件和表单字段。

/// info | 信息

接收上传的文件和/或表单数据，首先安装 [`python-multipart`](https://github.com/Kludex/python-multipart)。

请先创建并激活一个[虚拟环境](../virtual-environments.md)，然后再安装，例如：

```console
$ pip install python-multipart
```

///

## 导入 `File` 与 `Form` { #import-file-and-form }

{* ../../docs_src/request_forms_and_files/tutorial001_an_py310.py hl[3] *}

 * It is public so we can access it reflectively across class loaders in secure environments.
 *
 * <p>This class can't depend on other Guava code. If we were to load this class in the same class
 * loader as the rest of Guava, this thread would keep an indirect strong reference to the class
 * loader and prevent it from being garbage collected. This poses a problem for environments where

# 請求中的表單與檔案 { #request-forms-and-files }

你可以使用 `File` 與 `Form` 同時定義檔案與表單欄位。

/// info

要接收上傳的檔案與/或表單資料，請先安裝 [`python-multipart`](https://github.com/Kludex/python-multipart)。

請先建立並啟用一個 [虛擬環境](../virtual-environments.md)，然後再安裝，例如：

```console
$ pip install python-multipart
```

///

## 匯入 `File` 與 `Form` { #import-file-and-form }

{* ../../docs_src/request_forms_and_files/tutorial001_an_py310.py hl[3] *}

/// info | Дополнительная информация

Чтобы использовать формы, сначала установите [`python-multipart`](https://github.com/Kludex/python-multipart).

Убедитесь, что вы создали и активировали [виртуальное окружение](../virtual-environments.md), а затем установите пакет, например:

```console
$ pip install python-multipart
```

///

/// note | Заметка

Этот функционал доступен начиная с версии FastAPI `0.113.0`. 🤓

///

Properties for additional information:
o additionalForeignKeyMap.dfprop
o additionalPrimaryKeyMap.dfprop
o additionalUniqueKeyMap.dfprop (manual making)
o additionalTableMap.dfprop (manual making)

Properties for implementation environments:
o classificationDefinitionMap.dfprop
o classificationDeploymentMap.dfprop
o commonColumnMap.dfprop
o conditionBeanMap.dfprop
o dependencyInjectionMap.dfprop
o littleAdjustmentMap.dfprop
o outsideSqlMap.dfprop

## `TestClient` Kullanımı { #using-testclient }

/// info | Bilgi

`TestClient` kullanmak için önce [`httpx`](https://www.python-httpx.org)'i kurun.

Bir [Sanal Ortam](../virtual-environments.md) oluşturduğunuzdan, onu aktifleştirdiğinizden ve sonra kurulumu yaptığınızdan emin olun; örneğin:

```console
$ pip install httpx
```

///

`TestClient`'ı import edin.

/// info | Інформація

Щоб використовувати `TestClient`, спочатку встановіть [`httpx`](https://www.python-httpx.org).

Переконайтеся, що ви створили [віртуальне середовище](../virtual-environments.md), активували його, а потім встановили `httpx`, наприклад:

```console
$ pip install httpx
```

///

Імпортуйте `TestClient`.

Створіть `TestClient`, передавши йому ваш застосунок **FastAPI**.

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