本教程同样可以作为将来的参考手册。

你可以随时回到本教程并查阅你需要的内容。

## 运行代码

所有代码片段都可以复制后直接使用（它们实际上是经过测试的 Python 文件）。

要运行任何示例，请将代码复制到 `main.py` 文件中，然后使用以下命令启动 `uvicorn`：

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
<span style="color: green;">INFO</span>:     Started reloader process [28720]

	defer locker.Unlock(lkctx)

	// Load healing tracker in this disk
	tracker, err := loadHealingTracker(ctx, disk)
	if err != nil {
		// A healing tracker may be deleted if another disk in the
		// same erasure set with same healing-id successfully finished
		// healing.
		if errors.Is(err, errFileNotFound) {
			return nil
		}

  }

  // constructor tests

  public void testComputingFunction() {
    CacheLoader<Object, Object> loader =
        new CacheLoader<Object, Object>() {
          @Override
          public Object load(Object from) {
            return new Object();
          }
        };
    LocalLoadingCache<Object, Object> cache = makeCache(createCacheBuilder(), loader);
    assertSame(loader, cache.localCache.defaultLoader);
  }

  }

  // constructor tests

  public void testComputingFunction() {
    CacheLoader<Object, Object> loader =
        new CacheLoader<Object, Object>() {
          @Override
          public Object load(Object from) {
            return new Object();
          }
        };
    LocalLoadingCache<Object, Object> cache = makeCache(createCacheBuilder(), loader);
    assertSame(loader, cache.localCache.defaultLoader);
  }

        File pom0 = new File(localRepo, "p0/pom.xml");
        File pom0Basedir = pom0.getParentFile();
        File pom1 = new File(pom0Basedir, "p1/pom.xml");

        // load the child project, which inherits from p0...
        MavenProject project0 = getProjectWithDependencies(pom0);
        MavenProject project1 = getProjectWithDependencies(pom1);

        final DynamicProperties systemProperties = ComponentUtil.getSystemProperties();

        if (StringUtil.isNotBlank(options.propertiesPath)) {
            systemProperties.reload(options.propertiesPath);
        } else {
            try {
                final File propFile = ComponentUtil.getSystemHelper().createTempFile("crawler_", ".properties");

	t := Stats{}
	if list == nil {
		return t
	}
	t.CurrentSendCalls = list.currentSendCalls.Load()
	t.EventsSkipped = list.eventsSkipped.Load()
	t.TotalEvents = list.totalEvents.Load()
	t.CurrentQueuedCalls = int64(len(list.queue))
	t.EventsErrorsTotal = list.eventsErrorsTotal.Load()

	list.RLock()
	defer list.RUnlock()
	t.TargetStats = make(map[TargetID]TargetStat, len(list.targets))

            this.windowSize = 2 * maxPageSize;
        } else {
            this.windowSize = windowSize;
        }
        load();
    }

    public void update() {
        CommonPoolUtil.execute(this::load);
    }

    protected void load() {
        final String value = System.getProperty("rank.fusion.searchers");
        if (StringUtil.isBlank(value)) {

	latency := make(map[time.Duration]uint64, len(k.latencyBuckets))
	for i, b := range k.latencyBuckets {
		latency[b] = k.latency[i].Load()
	}

	return &Metrics{
		ReqOK:   k.reqOK.Load(),
		ReqErr:  k.reqErr.Load(),
		ReqFail: k.reqFail.Load(),
		Latency: latency,
	}, nil
}

// Status returns status information about the KMS.
//

    with warnings.catch_warnings(record=True):
        warnings.simplefilter("always")
        mod = importlib.import_module(f"docs_src.sql_databases.{request.param}")
        clear_sqlmodel()
        importlib.reload(mod)
    mod.sqlite_url = "sqlite://"
    mod.engine = create_engine(
        mod.sqlite_url, connect_args={"check_same_thread": False}, poolclass=StaticPool
    )

    with TestClient(mod.app) as c:
        yield c