Um alle Optionen kennenzulernen, die Sie haben, schauen Sie sich <a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">Pydantics Typübersicht</a> an. Sie werden im nächsten Kapitel ein paar Beispiele kennenlernen.

✋️ ⚫️ 🚚 📥 🛠️ ⏮️ 🔧.

, 📤 5️⃣📆 🧰 👈 ⌛ & ⚙️ ⚫️ (🔜 ⚖️ 🔮) & 👈 💪 ⚠ 👆 ⚖️ 👆 👩‍💻, 🔜 ⚖️ 🔮.

👈 💰 🐩...

///

## 👀 ⚫️ 🎯

📂 🎓 🩺: <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

### 🔓

🖊 "✔" 🔼.

⚙️ 🎓:

👩‍💻: `johndoe`

🔐: `secret`

<img src="/img/tutorial/security/image04.png">

import org.opensearch.index.query.functionscore.ScoreFunctionBuilders;
import org.opensearch.search.SearchHit;
import org.opensearch.search.sort.SortOrder;

public class SuggestRequest extends Request<SuggestResponse> {
    private String index = null;

    private String query = "";

    private int size = 10;

    private final List<String> tags = new ArrayList<>();

import com.google.common.io.BaseEncoding;

import jakarta.annotation.PostConstruct;
import jakarta.annotation.PreDestroy;

public class SearchEngineClient implements Client {

    private static final Logger logger = LogManager.getLogger(SearchEngineClient.class);

    private static final String DOC_INDEX = "fess";

    private static final String LOG_INDEX_PREFIX = "fess_log";

import okhttp3.RequestBody.Companion.toRequestBody
import okhttp3.ResponseBody.Companion.toResponseBody
import okio.Buffer
import org.junit.jupiter.api.Tag
import org.junit.jupiter.api.Test

@Tag("Slowish")
class MultipartReaderTest {
  @Test fun `parse multipart`() {
    val multipart =
      """
      |--simple boundary
      |Content-Type: text/plain; charset=utf-8
      |Content-ID: abc
      |
      |abcd

 */

/* Fixes huge font size in <pre>{@code} blocks. */
pre code {
    font-size:inherit;
}

/*
 Fixes issue with no blank line before <pre> in class-level Javadoc
 when the <pre> is preceded by a block of text with no <p>.
 */
.description .block pre {
    margin-top:1em;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * Test ComparableVersion.
 *
 */
@SuppressWarnings("unchecked")
class ComparableVersionTest {
    private ComparableVersion newComparable(String version) {
        ComparableVersion ret = new ComparableVersion(version);
        String canonical = ret.getCanonical();

import java.net.*;
import java.io.IOException;
import java.util.HashMap;
import java.util.StringTokenizer;

import jcifs.smb1.Config;
import jcifs.smb1.util.Hexdump;
import jcifs.smb1.util.LogStream;

class NameServiceClient implements Runnable {

    static final int DEFAULT_SO_TIMEOUT = 5000;
    static final int DEFAULT_RCV_BUF_SIZE = 576;
    static final int DEFAULT_SND_BUF_SIZE = 576;

import org.eclipse.aether.RepositorySystemSession;

import static java.util.Objects.requireNonNull;

/**
 * A Maven execution session.
 *
 */
public class MavenSession implements Cloneable {
    private final MavenExecutionRequest request;

    private final MavenExecutionResult result;

    private final RepositorySystemSession repositorySystemSession;

* 数据转换
* 数据校验
* 自动生成文档

## 特殊的类型和校验

除了普通的单一值类型（如 `str`、`int`、`float` 等）外，你还可以使用从 `str` 继承的更复杂的单一值类型。

要了解所有的可用选项，请查看关于 <a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">来自 Pydantic 的外部类型</a> 的文档。你将在下一章节中看到一些示例。

例如，在 `Image` 模型中我们有一个 `url` 字段，我们可以把它声明为 Pydantic 的 `HttpUrl`，而不是 `str`：

//// tab | Python 3.10+

```Python hl_lines="2  8"