import com.google.common.annotations.GwtIncompatible;
import java.math.RoundingMode;

/**
 * Helper type to implement rounding {@code X} to a representable {@code double} value according to
 * a {@link RoundingMode}.
 */
@GwtIncompatible
abstract class ToDoubleRounder<X extends Number & Comparable<X>> {
  /**
   * Returns x rounded to either the greatest double less than or equal to the precise value of x,

Sie können <a href="https://en.wikipedia.org/wiki/Markdown" class="external-link" target="_blank">Markdown</a> im Docstring schreiben, es wird korrekt interpretiert und angezeigt (unter Berücksichtigung der Einrückung des Docstring).

{* ../../docs_src/path_operation_configuration/tutorial004_py310.py hl[17:25] *}

Вы можете использовать <a href="https://en.wikipedia.org/wiki/Markdown" class="external-link" target="_blank">Markdown</a> в строке документации, и он будет интерпретирован и отображён корректно (с учетом отступа в строке документации).

{* ../../docs_src/path_operation_configuration/tutorial004_py310.py hl[17:25] *}

You can write <a href="https://en.wikipedia.org/wiki/Markdown" class="external-link" target="_blank">Markdown</a> in the docstring, it will be interpreted and displayed correctly (taking into account docstring indentation).

{* ../../docs_src/path_operation_configuration/tutorial004_py310.py hl[17:25] *}

common:macos --cxxopt=-std=c++17
common:macos --host_cxxopt=-std=c++17
common:windows --cxxopt=/std:c++17
common:windows --host_cxxopt=/std:c++17

# On windows, we still link everything into a single DLL.
common:windows --config=monolithic

# On linux, we dynamically link small amount of kernels
common:linux --config=dynamic_kernels

# Make sure to include as little of windows.h as possible
common:windows --copt=-DWIN32_LEAN_AND_MEAN

通过考虑这些概念，您将能够**评估和设计**部署**您自己的 API**的最佳方式。

在接下来的章节中，我将为您提供更多部署 FastAPI 应用程序的**具体方法**。

但现在，让我们仔细看一下这些重要的**概念**。 这些概念也适用于任何其他类型的 Web API。 💡

## 安全性 - HTTPS

在[上一章有关 HTTPS](https.md){.internal-link target=_blank} 中，我们了解了 HTTPS 如何为您的 API 提供加密。

我们还看到，HTTPS 通常由应用程序服务器的**外部**组件（**TLS 终止代理**）提供。

并且必须有某个东西负责**更新 HTTPS 证书**，它可以是相同的组件，也可以是不同的组件。


### HTTPS 示例工具

您可以用作 TLS 终止代理的一些工具包括：

* Traefik

import com.google.common.collect.testing.features.MapFeature;
import java.util.Collection;
import java.util.Map;
import java.util.Map.Entry;
import org.junit.Ignore;

/**
 * Tests for {@link Multimap#clear()}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")

import com.google.common.collect.Multimap;
import com.google.common.collect.testing.features.MapFeature;
import java.util.Collection;
import org.junit.Ignore;

/**
 * Tester for {@link Multimap#putAll(Multimap)}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")

/**
 * Handles deserialization of metadata from some kind of textual format like XML.
 *
 */
public interface MetadataReader {

    /**
     * The key for the option to enable strict parsing. This option is of type {@link Boolean} and defaults to {@code
     * true}. If {@code false}, unknown elements will be ignored instead of causing a failure.
     */
    String IS_STRICT = "org.apache.maven.artifact.repository.metadata.io.isStrict";

 */
@Deprecated(since = "4.0.0")
public interface ToolchainsReader {

    /**
     * The key for the option to enable strict parsing. This option is of type {@link Boolean} and defaults to {@code
     * true}. If {@code false}, unknown elements will be ignored instead of causing a failure.
     */
    String IS_STRICT = "org.apache.maven.toolchains.io.isStrict";

    /**