在您的 WebSocket 路由中，您可以使用 `await` 等待消息并发送消息。

{* ../../docs_src/websockets/tutorial001.py hl[48:52] *}

您可以接收和发送二进制、文本和 JSON 数据。

## 尝试一下

如果您的文件名为 `main.py`，请使用以下命令运行应用程序：

```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)
```

在浏览器中打开 <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>。

        final DynamicProperties systemProperties = ComponentUtil.getSystemProperties();

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

				return
			}
		case "Uploads":
			var zb0002 uint32
			zb0002, bts, err = msgp.ReadArrayHeaderBytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "Uploads")
				return
			}
			if cap(z.Uploads) >= int(zb0002) {
				z.Uploads = (z.Uploads)[:zb0002]
			} else {
				z.Uploads = make([]MultipartInfo, zb0002)
			}
			for za0001 := range z.Uploads {

- [KCCM] drop filtering nodes for the providerID when syncing load balancers, but have changes to the field trigger a re-sync of load balancers. This should ensure that cloud providers which don't specify providerID, can still use the service controller implementation to provision load balancers. ([#117602](https://github.com/kubernetes/kubernetes/pull/117602), [@alexanderConstantinescu](https://github.com/alexanderConstantinescu))...

macOS.\n//\n\n[type=\"search\"]::-webkit-search-decoration {\n  -webkit-appearance: none;\n}\n\n//\n// 1. Correct the inability to style clickable types in iOS and Safari.\n// 2. Change font properties to `inherit` in Safari.\n//\n\n::-webkit-file-upload-button {\n  font: inherit; // 2\n  -webkit-appearance: button; // 1\n}\n\n//\n// Correct element displays\n//\n\noutput {\n  display: inline-block;\n}\n\nsummary {\n  display: list-item; // Add the correct display in all browsers\n  cursor: pointer;\n}\n\ntemplate...

## `fastapi dev`

執行 `fastapi dev` 會啟動開發模式。

預設情況下，**auto-reload** 功能是啟用的，當你對程式碼進行修改時，伺服器會自動重新載入。這會消耗較多資源，並且可能比禁用時更不穩定。因此，你應該只在開發環境中使用此功能。它也會在 IP 位址 `127.0.0.1` 上監聽，這是用於你的機器與自身通訊的 IP 位址（`localhost`）。

## `fastapi run`

執行 `fastapi run` 會以生產模式啟動 FastAPI。

預設情況下，**auto-reload** 功能是禁用的。它也會在 IP 位址 `0.0.0.0` 上監聽，表示會監聽所有可用的 IP 地址，這樣任何能與該機器通訊的人都可以公開存取它。這通常是你在生產環境中運行應用程式的方式，例如在容器中運行時。

## `fastapi dev` { #fastapi-dev }

Ejecutar `fastapi dev` inicia el modo de desarrollo.

Cada programa de servidor ASGI alternativo teria um comando semelhante, você pode ler mais na documentação respectiva.

/// warning | Atenção

Uvicorn e outros servidores suportam a opção `--reload` que é útil durante o desenvolvimento.

A opção `--reload` consome muito mais recursos, é mais instável, etc.

Ela ajuda muito durante o **desenvolvimento**, mas você **não deve** usá-la em **produção**.

///

                + "                        \n";

        java.util.Properties props1 = new java.util.Properties();
        props1.load(new StringReader(config));

        MavenProperties props2 = new MavenProperties();
        props2.load(new StringReader(config));

        String s325 = props1.getProperty(" \r");
        assertEquals("\n \t \f", s325, "1");

#       export TF_ANY_TARGETS="quoted list of targets, like on the command line"
#       export TF_ANY_MODE="test" or "build" or "run" (default: "test")
#       ./any.sh
#
# 2. RUN ANY OTHER SCRIPT AND ENV WITH NO SIDE EFFECTS (NO UPLOADS)
#    To use:
#       export TFCI=ci/official/envs/env_goes_here
#       export TF_ANY_SCRIPT=ci/official/wheel.sh
#       ./any.sh
#
# 3. DO THE SAME WITH A LOCAL CACHE OR RBE: