}

  /**
   * Evaluates whether the argument is an "IPv4 mapped" IPv6 address.
   *
   * <p>An "IPv4 mapped" address is anything in the range ::ffff:0:0/96 (sometimes written as
   * ::ffff:0.0.0.0/96), with the last 32 bits interpreted as an IPv4 address.
   *
   * <p>For more on IPv4 mapped addresses see section 2.5.5.2 of <a target="_parent"
   * href="http://tools.ietf.org/html/rfc4291#section-2.5.5.2">RFC 4291</a>.

///

## 运行服务器程序

如果您手动安装了 ASGI 服务器，通常需要以特定格式传递一个导入字符串，以便服务器能够正确导入您的 FastAPI 应用：

<div class="termy">

```console
$ uvicorn main:app --host 0.0.0.0 --port 80

<span style="color: green;">INFO</span>:     Uvicorn running on http://0.0.0.0:80 (Press CTRL+C to quit)
```

</div>

/// note

命令 `uvicorn main:app` 的含义如下：

默认情况下，它将监听 IP 地址 `127.0.0.1`，这是你的机器与自身通信的 IP 地址（`localhost`）。

## `fastapi run`

当你运行 `fastapi run` 时，它默认以生产环境模式运行。

默认情况下，**自动重载是禁用的**。

它将监听 IP 地址 `0.0.0.0`，即所有可用的 IP 地址，这样任何能够与该机器通信的人都可以公开访问它。这通常是你在生产环境中运行它的方式，例如在容器中运行。

在大多数情况下，你会（且应该）有一个“终止代理”在上层为你处理 HTTPS，这取决于你如何部署应用程序，你的服务提供商可能会为你处理此事，或者你可能需要自己设置。

/// tip | 提示

RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

COPY ./app /code/app

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "80"]

# If running behind a proxy like Nginx or Traefik add --proxy-headers
# CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "80", "--proxy-headers"]
```

</details>

## 什么是容器

  display: none;
  font-family: arial;
  font-size: 15px;
  line-height: 1em;
}

.daterangepicker:before, .daterangepicker:after {
  position: absolute;
  display: inline-block;
  border-bottom-color: rgba(0, 0, 0, 0.2);
  content: '';
}

.daterangepicker:before {
  top: -7px;
  border-right: 7px solid transparent;
  border-left: 7px solid transparent;
  border-bottom: 7px solid #ccc;
}

.daterangepicker:after {

graph LR

browser("Browser")
proxy["Proxy on http://0.0.0.0:9999/api/v1/app"]
server["Server on http://127.0.0.1:8000/app"]

browser --> proxy
proxy --> server
```

/// tip

The IP `0.0.0.0` is commonly used to mean that the program listens on all the IPs available in that machine/server.

///

	for i := range listener.listeners {
		listener.listeners[i].Close()
	}

	return nil
}

// Addr - net.Listener interface compatible method returns net.Addr.  In case of multiple TCP listeners, it returns '0.0.0.0' as IP address.
func (listener *httpListener) Addr() (addr net.Addr) {
	addr = listener.listeners[0].Addr()
	if len(listener.listeners) == 1 {
		return addr
	}

	if tcpAddr, ok := addr.(*net.TCPAddr); ok {

    assertEscaping(e, "%7F", '\u007f'); // del
    assertEscaping(e, "%C2%80", '\u0080'); // xx-00010,x-000000
    assertEscaping(e, "%DF%BF", '\u07ff'); // xx-11111,x-111111
    assertEscaping(e, "%E0%A0%80", '\u0800'); // xxx-0000,x-100000,x-00,0000
    assertEscaping(e, "%EF%BF%BF", '\uffff'); // xxx-1111,x-111111,x-11,1111
    assertUnicodeEscaping(e, "%F0%90%80%80", '\uD800', '\uDC00');
    assertUnicodeEscaping(e, "%F4%8F%BF%BF", '\uDBFF', '\uDFFF');

```mermaid
graph LR

browser("Browser")
proxy["Proxy on http://0.0.0.0:9999/api/v1/app"]
server["Server on http://127.0.0.1:8000/app"]

browser --> proxy
proxy --> server
```

/// tip | 提示

IP `0.0.0.0` 常用于指程序监听本机或服务器上的所有有效 IP。

///

API 文档还需要 OpenAPI 概图声明 API `server` 位于 `/api/v1`（使用代理时的 URL）。例如：

```JSON hl_lines="4-8"
{
    "openapi": "3.0.2",
    // More stuff here
    "servers": [
        {

      DELIMITER_NEWLINE -> {
        continue
      }

      DELIMITER_DOT, DELIMITER_SPACE, DELIMITER_SEMICOLON -> {
        throw IOException("unexpected delimiter")
      }
    }

    // "002F" or "0000..002C"
    val sourceCodePoint0 = readHexadecimalUnsignedLong()
    val sourceCodePoint1 =
      when (select(optionsDot)) {
        DELIMITER_DOT -> {