The same way as with Pydantic models, you declare class attributes with type annotations, and possibly default values.

You can use all the same validation features and tools you use for Pydantic models, like different data types and additional validations with `Field()`.

{* ../../docs_src/settings/tutorial001_py39.py hl[2,5:8,11] *}

/// tip

            // TODO: This is coupled to extension.getJavadocs().getJavaApi()
            attributes.put("javadocReferenceUrl", "https://docs.oracle.com/javase/8/docs/technotes/tools/windows/javadoc.html");
            // TODO: This is coupled to extension.getJavadocs().getJavaApi()
            attributes.put("minJdkVersion", "17");

            attributes.put("antManual", "https://ant.apache.org/manual");

  <description>Maven is a project development management and
    comprehension tool. Based on the concept of a project object model:
    builds, dependency management, documentation creation, site
    publication, and distribution publication are all controlled from
    the declarative file. Maven can be extended by plugins to utilise a
    number of other development tools for reporting or the build
    process.
  </description>

///

### 多種編輯器支援

整個框架的設計是為了讓使用變得簡單且直觀，在開始開發之前，所有決策都在多個編輯器上進行了測試，以確保提供最佳的開發體驗。

在最近的 Python 開發者調查中，我們能看到<a href="https://www.jetbrains.com/research/python-developers-survey-2017/#tools-and-features" class="external-link" target="_blank"> 被使用最多的功能是 autocompletion</a>，此功能可以預測將要輸入文字，並自動補齊。

整個 **FastAPI** 框架就是基於這一點，任何地方都可以進行自動補齊。

你幾乎不需要經常來回看文件。

在這裡，你的編輯器可能會這樣幫助你：

- github.com/tidwall/sjson: [v1.2.5](https://github.com/tidwall/sjson/tree/v1.2.5)
- go.uber.org/automaxprocs: v1.6.0
- golang.org/x/tools/go/expect: v0.1.1-deprecated
- golang.org/x/tools/go/packages/packagestest: v0.1.1-deprecated

### Changed
- cloud.google.com/go/compute/metadata: v0.6.0 → v0.7.0

                                        <la:message key="labels.crud_title_details"/>
                                    </c:if>
                                </h3>
                                <div class="card-tools">
                                    <div class="btn-group">
                                        <c:choose>
                                            <c:when test="${crudMode == null}">

Wenn Sie eine Abhängigkeit mit `yield` erstellen, erstellt **FastAPI** dafür intern einen Kontextmanager und kombiniert ihn mit einigen anderen zugehörigen Tools.

### Kontextmanager in Abhängigkeiten mit `yield` verwenden { #using-context-managers-in-dependencies-with-yield }

/// warning | Achtung

Dies ist mehr oder weniger eine „fortgeschrittene“ Idee.

    assertThat(base.resolve("ht-tp//b/")).isEqualTo(parse("http://a/ht-tp//b/"))
    assertThat(base.resolve("ht.tp//b/")).isEqualTo(parse("http://a/ht.tp//b/"))
  }

  /**
   * https://tools.ietf.org/html/rfc3986#section-5.4.1
   */
  @Test
  fun rfc3886NormalExamples() {
    val url = parse("http://a/b/c/d;p?q")
    // No 'g:' scheme in HttpUrl.
    assertThat(url.resolve("g:h")).isNull()

When the `with` block finishes, it makes sure to close the file, even if there were exceptions.

When you create a dependency with `yield`, **FastAPI** will internally create a context manager for it, and combine it with some other related tools.

### Using context managers in dependencies with `yield` { #using-context-managers-in-dependencies-with-yield }

/// warning

This is, more or less, an "advanced" idea.

///

### 편집기 지원

모든 프레임워크는 사용하기 쉽고 직관적으로 설계되었으며, 좋은 개발 경험을 보장하기 위해 개발을 시작하기도 전에 모든 결정들은 여러 편집기에서 테스트됩니다.

최근 파이썬 개발자 설문조사에서 <a href="https://www.jetbrains.com/research/python-developers-survey-2017/#tools-and-features" class="external-link" target="_blank">"자동 완성"이 가장 많이 사용되는 기능</a>이라는 것이 밝혀졌습니다.

**FastAPI** 프레임워크의 모든 부분은 이를 충족하기 위해 설계되었습니다. 자동완성은 어느 곳에서나 작동합니다.

여러분은 문서로 다시 돌아올 일이 거의 없을 겁니다.