```Python hl_lines="2  5-8  11"
{!../../docs_src/settings/tutorial001.py!}
```

/// tip

如果您需要一个快速的复制粘贴示例，请不要使用此示例，而应使用下面的最后一个示例。

///

然后，当您创建该 `Settings` 类的实例（在此示例中是 `settings` 对象）时，Pydantic 将以不区分大小写的方式读取环境变量，因此，大写的变量 `APP_NAME` 仍将为属性 `app_name` 读取。

然后，它将转换和验证数据。因此，当您使用该 `settings` 对象时，您将获得您声明的类型的数据（例如 `items_per_user` 将为 `int` 类型）。

### 使用 `settings`

然后，您可以在应用程序中使用新的 `settings` 对象：

project(":mockwebserver-junit4").name = "mockwebserver3-junit4"
include(":mockwebserver-junit5")
project(":mockwebserver-junit5").name = "mockwebserver3-junit5"

val androidBuild: String by settings
val graalBuild: String by settings
val loomBuild: String by settings

if (androidBuild.toBoolean()) {
  include(":regression-test")
}

if (graalBuild.toBoolean()) {
  include(":native-image-tests")
}

include(":okcurl")

dependencyResolutionManagement {
    repositories {
        gradlePluginPortal()
    }
}

plugins {
    id("org.gradle.toolchains.foojay-resolver-convention") version("0.8.0")
}

includeBuild("../build-logic-settings")

// Shared basics for all
include("basics")

// Platform: defines shared dependency versions
include("build-platform")

plugins {
    id("com.gradle.develocity").version("3.18.1") // Run `java build-logic-settings/UpdateDevelocityPluginVersion.java <new-version>` to update
    id("io.github.gradle.gradle-enterprise-conventions-plugin").version("0.10.2")
    id("org.gradle.toolchains.foojay-resolver-convention").version("0.8.0")
}

include("build-environment")

<?xml version="1.0" encoding="UTF-8"?>
<settings>
  <webhooks enabled="true">
    <webhook url="https://gradle-bot.grdev.net/teamcity_slacktemplate" enabled="true" template="slack.com">
      <states>
        <state type="buildAddedToQueue" enabled="false" />
        <state type="buildRemovedFromQueue" enabled="true" />
        <state type="buildStarted" enabled="true" />
        <state type="changesLoaded" enabled="true" />

  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 ../../../../../../../maven-plugin-parameter-documenter/target/generated-site/xsd/paramdoc-1.0.0.xsd ">
  <expressions>
    <expression>
      <syntax>settings.offline</syntax>
      <configuration>
        <![CDATA[
    <offline>true</offline>
    ]]></configuration>
      <description>
        <![CDATA[

Anže Sodja <******@****.***> 1721979852 +0200

    // Write the mocking script.
    val settings1 = Settings()
    settings1[Settings.HEADER_TABLE_SIZE] = 10000
    settings1[Settings.INITIAL_WINDOW_SIZE] = 20000
    settings1[Settings.MAX_FRAME_SIZE] = 30000
    peer.sendFrame().settings(settings1)
    peer.acceptFrame() // ACK SETTINGS
    val settings2 = Settings()
    settings2[Settings.INITIAL_WINDOW_SIZE] = 40000
    settings2[Settings.MAX_FRAME_SIZE] = 50000

    protected final String arraySettingsIndexName;
    protected final String settingsId;
    protected final SuggestSettings settings;

    private static final Base64.Encoder encoder = Base64.getEncoder();

    protected ArraySettings(final SuggestSettings settings, final Client client, final String settingsIndexName, final String settingsId) {
        this.settings = settings;
        this.client = client;

        final Suggester suggester = Suggester.builder().settings(SuggestSettings.builder().setSettingsIndexName(settingsIndexName))
                .readingConverter(converter).normalizer(normalizer).build(runner.client(), id);

        assertEquals(runner.client(), suggester.client);

        SuggestSettings settings = suggester.settings();
        assertEquals(settingsIndexName, settings.getSettingsIndexName());