在这里你导入并使用 `FastAPI` 类。

这将是你的应用程序中将所有内容联结在一起的主文件。

并且由于你的大部分逻辑现在都存在于其自己的特定模块中，因此主文件的内容将非常简单。

### 导入 `FastAPI` { #import-fastapi }

你可以像平常一样导入并创建一个 `FastAPI` 类。

我们甚至可以声明[全局依赖项](dependencies/global-dependencies.md)，它会和每个 `APIRouter` 的依赖项组合在一起：

{* ../../docs_src/bigger_applications/app_an_py310/main.py hl[1,3,7] title["app/main.py"] *}

### 导入 `APIRouter` { #import-the-apirouter }

## Глобальні залежності { #global-dependencies }

// gle : Charleston Road Registry Inc.
// https://www.iana.org/domains/root/db/gle.html
gle

// global : Identity Digital Limited
// https://www.iana.org/domains/root/db/global.html
global

// globo : Globo Comunicação e Participações S.A
// https://www.iana.org/domains/root/db/globo.html
globo

// gmail : Charleston Road Registry Inc.
// https://www.iana.org/domains/root/db/gmail.html
gmail

## 一組路徑操作的依賴 { #dependencies-for-a-group-of-path-operations }

之後在閱讀如何組織較大的應用程式（[較大型應用程式——多個檔案](../../tutorial/bigger-applications.md)）時，你會學到如何為一組路徑操作宣告一個共同的 `dependencies` 參數。

## 全域依賴 { #global-dependencies }

## Глобальные Зависимости { #global-dependencies }

    String ALT_USER_SETTINGS_XML_LOCATION = "org.apache.maven.user-settings";
    String ALT_GLOBAL_SETTINGS_XML_LOCATION = "org.apache.maven.global-settings";
    String ALT_LOCAL_REPOSITORY_LOCATION = "maven.repo.local";

    Settings buildSettings(MavenExecutionRequest request) throws IOException, XmlPullParserException;

    /**

```console
$ pip install "harry==1"
```

</div>

У підсумку у вас буде встановлено `harry` версії `1` у глобальному середовищі Python.

```mermaid
flowchart LR
    subgraph global[global env]
        harry-1[harry v1]
    end
    subgraph stone-project[philosophers-stone project]
        stone(philosophers-stone) -->|requires| harry-1
    end
```

import org.codelibs.fess.opensearch.config.cbean.cq.bs.BsDataConfigCQ;
import org.opensearch.search.aggregations.bucket.filter.FilterAggregationBuilder;
import org.opensearch.search.aggregations.bucket.global.GlobalAggregationBuilder;
import org.opensearch.search.aggregations.bucket.histogram.HistogramAggregationBuilder;
import org.opensearch.search.aggregations.bucket.missing.MissingAggregationBuilder;

        *   The random-number-generating ops in the `tf.random` module when the
            global random seed has not yet been set (via `tf.random.set_seed`).
            Throws `RuntimeError` from Python or `InvalidArgument` from C++
        *   `tf.compat.v1.get_seed` if the global random seed has not yet been
            set (via `tf.random.set_seed`). Throws `RuntimeError` from Python or

  final Ticker ticker;

  /** Factory used to create new entries. */
  final EntryFactory entryFactory;

  /**
   * Accumulates global cache statistics. Note that there are also per-segments stats counters which
   * must be aggregated to obtain a global stats view.
   */
  final StatsCounter globalStatsCounter;

  /** The default cache loader to use on loading operations. */