///

## `response_model`에서 Dataclasses 사용하기 { #dataclasses-in-response-model }

`response_model` 매개변수에서도 `dataclasses`를 사용할 수 있습니다:

{* ../../docs_src/dataclasses_/tutorial002_py310.py hl[1,6:12,18] *}

dataclass는 자동으로 Pydantic dataclass로 변환됩니다.

이렇게 하면 해당 스키마가 API docs 사용자 인터페이스에 표시됩니다:

<img src="/img/tutorial/dataclasses/image01.png">

## 중첩 데이터 구조에서 Dataclasses 사용하기 { #dataclasses-in-nested-data-structures }

In diesem Fall können Sie einfach die Standard-`dataclasses` durch `pydantic.dataclasses` ersetzen, was einen direkten Ersatz darstellt:

{* ../../docs_src/dataclasses_/tutorial003_py310.py hl[1,4,7:10,13:16,22:24,27] *}

1. Wir importieren `field` weiterhin von Standard-`dataclasses`.

2. `pydantic.dataclasses` ist ein direkter Ersatz für `dataclasses`.

3. Die Datenklasse `Author` enthält eine Liste von `Item`-Datenklassen.

# 使用数据类 { #using-dataclasses }

FastAPI 基于 **Pydantic** 构建，我已经向你展示过如何使用 Pydantic 模型声明请求与响应。

但 FastAPI 也支持以相同方式使用 [`dataclasses`](https://docs.python.org/3/library/dataclasses.html)：

{* ../../docs_src/dataclasses_/tutorial001_py310.py hl[1,6:11,18:19] *}

这仍然得益于 **Pydantic**，因为它对 [`dataclasses` 的内置支持](https://docs.pydantic.dev/latest/concepts/dataclasses/#use-of-stdlib-dataclasses-with-basemodel)。

          echo "Falling back to using Java to download"
        fi
        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
        # For Cygwin, switch paths to Windows format before running javac
        if $cygwin; then
          javaClass=`cygpath --path --windows "$javaClass"`
        fi
        if [ -e "$javaClass" ]; then
            if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then

      object : DeferredSocketAdapter.Factory {
        override fun matchesSocket(sslSocket: SSLSocket): Boolean = sslSocket.javaClass.name.startsWith("$packageName.")

        override fun create(sslSocket: SSLSocket): SocketAdapter = build(sslSocket.javaClass)
      }
  }

fun Task.isMonitoredCompileTask() = (this is AbstractCompile || this.isClasspathManifest()) && !isKotlinJsIrLink()

fun Task.isClasspathManifest() = this.javaClass.simpleName.startsWith("ClasspathManifest")

// https://youtrack.jetbrains.com/issue/KT-49915
fun Task.isKotlinJsIrLink() = this.javaClass.simpleName.startsWith("KotlinJsIrLink")

fun isMonitoredAsciidoctorTask() = false // No asciidoctor tasks are cacheable for now

      }

      assertThat(
        response.connection
          .socket()
          .javaClass.name,
      ).isEqualTo(
        "sun.security.ssl.SSLSocketImpl",
      )
    }
  }

  @Test
  fun testSupportedProtocols() {
    val factory = SSLSocketFactory.getDefault()
    assertThat(factory.javaClass.name).isEqualTo("sun.security.ssl.SSLSocketFactoryImpl")
    val s = factory.createSocket() as SSLSocket

  }

  fun assertFailure(
    cls: Class<out IOException?>?,
    vararg messages: String,
  ) {
    val event = nextEvent() as Failure
    assertThat(event.response).isNull()
    assertThat(event.t.javaClass).isEqualTo(cls)
    if (messages.isNotEmpty()) {
      assertThat(messages).contains(event.t.message)
    }
  }

  fun assertFailure() {
    nextEvent() as Failure
  }

  fun assertFailure(

 */
class PlatformRuleTest {
  @RegisterExtension @JvmField
  val platform = PlatformRule()

  @Test
  fun testMode() {
    println(PlatformRule.getPlatformSystemProperty())
    println(Platform.get().javaClass.simpleName)
  }

  @Test
  fun testGreenCase() {
  }

  @Test
  fun testGreenCaseFailingOnLater() {
    platform.expectFailureFromJdkVersion(PlatformVersion.majorVersion + 1)
  }

  @Test

            exclude_none=exclude_none,
            exclude_defaults=exclude_defaults,
            sqlalchemy_safe=sqlalchemy_safe,
        )
    if dataclasses.is_dataclass(obj):
        assert not isinstance(obj, type)
        obj_dict = dataclasses.asdict(obj)
        return jsonable_encoder(
            obj_dict,
            include=include,
            exclude=exclude,
            by_alias=by_alias,