///

/// tip | 提示

通常你只需要在创建虚拟环境后 **执行一次** 这个操作。

///

<div class="termy">

```console
$ echo "*" > .venv/.gitignore
```

</div>

/// details | 上述命令的含义

* `echo "*"`: 将在终端中 "打印" 文本 `*`（接下来的部分会对这个操作进行一些修改）
* `>`: 使左边的命令打印到终端的任何内容实际上都不会被打印，而是会被写入到右边的文件中
* `.gitignore`: 被写入文本的文件的名称

而 `*` 对于 Git 来说意味着 "所有内容"。所以，它会忽略 `.venv` 目录中的所有内容。

                }
            }
        }
    }

    private boolean checkChannelHealth(ChannelInfo channel) {
        // Simplified health check - in real implementation would send a ping/echo
        return channel.getTransport() != null;
    }

### Despliega tu app (opcional) { #deploy-your-app-optional }

Opcionalmente puedes desplegar tu app de FastAPI en [FastAPI Cloud](https://fastapicloud.com), ve y únete a la lista de espera si aún no lo has hecho. 🚀

Si ya tienes una cuenta de **FastAPI Cloud** (te invitamos desde la lista de espera 😉), puedes desplegar tu aplicación con un solo comando.

Antes de desplegar, asegúrate de haber iniciado sesión:

```Python hl_lines="3  5-6"
{
    "name": "Baz",
    "description": None,
    "price": 50.2,
    "tax": 10.5,
    "tags": []
}
```

////

//// tab | 資訊

... 不過，程式碼片段中的引號必須保持原樣。

////

## 程式碼區塊 { #code-blocks }

//// tab | 測試

一個 Bash 程式碼範例...

```bash
# 向宇宙輸出問候
echo "Hello universe"
```

...以及一個主控台範例...

```console
$ <font color="#4E9A06">fastapi</font> run <u style="text-decoration-style:solid">main.py</u>

	// still broken on our builders in 2023. Instead, append the exitcode to
	// the output and parse it from there.
	filter, exitStr := newExitCodeFilter(os.Stdout)
	args += "; echo -n " + exitStr + "$?"

	cmd := adbCmd("exec-out", args)
	cmd.Stdout = filter
	// If the adb subprocess somehow hangs, go test will kill this wrapper
	// and wait for our os.Stderr (and os.Stdout) to close as a result.

///

/// tip

가상 환경을 만든 직후 **한 번만** 하면 됩니다.

///

<div class="termy">

```console
$ echo "*" > .venv/.gitignore
```

</div>

/// details | 명령어 의미

* `echo "*"`: 터미널에 `*` 텍스트를 "출력"합니다(다음 부분이 이를 약간 변경합니다)
* `>`: `>` 왼쪽 명령어가 터미널에 출력한 내용을 터미널에 출력하지 않고, `>` 오른쪽에 있는 파일에 기록하라는 의미입니다
* `.gitignore`: 텍스트가 기록될 파일 이름입니다

... However, quotes inside code snippets must stay as is.

////

## code blocks { #code-blocks }

//// tab | Test

A Bash code example...

```bash
# Print a greeting to the universe
echo "Hello universe"
```

...and a console code example...

```console
$ <font color="#4E9A06">fastapi</font> run <u style="text-decoration-style:solid">main.py</u>

        lenient().when(fh.isValid()).thenReturn(true);
        lenient().when(fh.getTree()).thenReturn(tree);
        when(fh.getFid()).thenReturn(99);

        // Mock send to just echo the provided response instance
        when(tree.send(any(TransTransactNamedPipe.class), any(TransTransactNamedPipeResponse.class), eq(RequestParam.NO_RETRY)))
                .thenAnswer(inv -> inv.getArgument(1));

Importa `SQLModel` y crea un modelo de base de datos:

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[1:11] hl[7:11] *}

La clase `Hero` es muy similar a un modelo de Pydantic (de hecho, en el fondo, realmente *es un modelo de Pydantic*).

Hay algunas diferencias: