</p>

<pre>
var limit = make(chan int, 3)

func main() {
	for _, w := range work {
		go func(w func()) {
			limit &lt;- 1
			w()
			&lt;-limit
		}(w)
	}
	select{}
}
</pre>

<h3 id="locks">Locks</h3>

<p>
The <code>sync</code> package implements two lock data types,
<code>sync.Mutex</code> and <code>sync.RWMutex</code>.
</p>

<p class="rule">

        if (log.isDebugEnabled()) {
            log.debug("Adding key " + key + " to " + dr);
        }

        /*
         * Subtract the server and share from the pathConsumed so that
         * it reflects the part of the relative path consumed and not
         * the entire path.
         */

        DfsReferralDataInternal next = dri;
        do {

Por ejemplo:

* [VS Code](https://code.visualstudio.com/docs/python/environments#_select-and-activate-an-environment)
* [PyCharm](https://www.jetbrains.com/help/pycharm/creating-virtual-environment.html)

/// tip | Consejo

여기서는 `SessionDep` 의존성(`Session`)을 사용하여 새로운 `Hero`를 `Session` 인스턴스에 추가하고, 데이터베이스에 변경 사항을 커밋하고, `hero` 데이터의 최신 상태를 갱신한 다음 이를 반환합니다.

### Heroes 조회하기 { #read-heroes }

`select()`를 사용하여 데이터베이스에서 `Hero`를 **조회**할 수 있습니다. 결과에 페이지네이션을 적용하기 위해 `limit`와 `offset`을 포함할 수 있습니다.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[48:55] hl[51:52,54] *}

### 단일 Hero 조회하기 { #read-one-hero }

* Surface reasonable error when client detects connection closed. ([#51381](https://github.com/kubernetes/kubernetes/pull/51381), [@mengqiy](https://github.com/mengqiy))
* Allow PSP's to specify a whitelist of allowed paths for host volume ([#50212](https://github.com/kubernetes/kubernetes/pull/50212), [@jhorwit2](https://github.com/jhorwit2))

Por exemplo:

* [VS Code](https://code.visualstudio.com/docs/python/environments#_select-and-activate-an-environment)
* [PyCharm](https://www.jetbrains.com/help/pycharm/creating-virtual-environment.html)

/// tip | Dica

Normalmente, você só precisa fazer isso **uma vez**, ao criar o ambiente virtual.

INFO:     Application startup complete.
```

</div>

<details markdown="1">
<summary>About the command <code>fastapi dev</code>...</summary>

The command `fastapi dev` reads your `main.py` file automatically, detects the **FastAPI** app in it, and starts a server using [Uvicorn](https://www.uvicorn.dev).

By default, `fastapi dev` will start with auto-reload enabled for local development.

Hello World
```

</div>

## 設定編輯器 { #configure-your-editor }

你可能會用到編輯器，請確保設定它使用你建立的相同虛擬環境（它可能會自動偵測到），以便你可以獲得自動完成和內嵌錯誤提示。

例如：

* [VS Code](https://code.visualstudio.com/docs/python/environments#_select-and-activate-an-environment)
* [PyCharm](https://www.jetbrains.com/help/pycharm/creating-virtual-environment.html)

/// tip

通常你只需要在建立虛擬環境時執行此操作**一次**。

///

```

</div>

## 配置编辑器 { #configure-your-editor }

你可能会用到编辑器，请确保配置它使用与你创建的相同的虚拟环境（它可能会自动检测到），以便你可以获得自动补全和内联错误提示。

例如：

* [VS Code](https://code.visualstudio.com/docs/python/environments#_select-and-activate-an-environment)
* [PyCharm](https://www.jetbrains.com/help/pycharm/creating-virtual-environment.html)

/// tip | 提示

通常你只需要在创建虚拟环境时执行此操作**一次**。

///

index*       (string)             Elasticsearch index to store/update events, index is auto-created
format*      (namespace*|access)  'namespace' reflects current bucket/object list and 'access' reflects a journal of object operations, defaults to 'namespace'
queue_dir    (path)               staging dir for undelivered messages e.g. '/home/events'