* `--bind`：这告诉 Gunicorn 要监听的 IP 和端口，使用冒号 (`:`) 分隔 IP 和端口。
     * 如果您直接运行 Uvicorn，则可以使用`--host 0.0.0.0`和`--port 80`，而不是`--bind 0.0.0.0:80`（Gunicorn 选项）。


在输出中，您可以看到它显示了每个进程的 **PID**（进程 ID）（它只是一个数字）。

你可以看到：

* Gunicorn **进程管理器** 以 PID `19499` 开头（在您的情况下，它将是一个不同的数字）。
* 然后它开始`Listening at: http://0.0.0.0:80`。
* 然后它检测到它必须使用 `uvicorn.workers.UvicornWorker` 处的worker类。

  @Test
  fun fragmentPercentEncodedNonAscii() {
    val url = "http://host/#%C2%80".toHttpUrl()
    assertThat(url.toUri().toString()).isEqualTo("http://host/#%C2%80")
  }

  @Test
  fun fragmentPercentEncodedPartialCodePoint() {
    val url = "http://host/#%80".toHttpUrl()
    assertThat(url.toUri().toString()).isEqualTo("http://host/#%80")
  }

    <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>

=== "Hypercorn"

    <div class="termy">

    ```console
    $ hypercorn main:app --bind 0.0.0.0:80

    Running on 0.0.0.0:8080 over http (CTRL + C to quit)
    ```

    </div>

By the last <a href="https://www.jetbrains.com/research/python-developers-survey-2018/#development-tools" class="external-link" target="_blank">Python Developer Survey</a>, that covers about 80% of the users.

It means that **FastAPI** was specifically tested with the editors used by 80% of the Python developers. And as most of the other editors tend to work similarly, all its benefits should work for virtually all editors.

Isso significa que o **FastAPI** foi testado especificamente com os editores usados por 80% dos desenvolvedores Python. Como a maioria dos outros editores tendem a funcionar de forma similar, todos os seus benefícios devem funcionar para virtualmente todos os editores.

    <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>

=== "Hypercorn"

    <div class="termy">

    ```console
    $ hypercorn main:app --bind 0.0.0.0:80

    Running on 0.0.0.0:8080 over http (CTRL + C to quit)
    ```

    </div>

NAME                  STATUS      LOCALITY     CLUSTER
10.244.0.176:8080     HEALTHY                  outbound|80||istio-ingressgateway.istio-system.svc.cluster.local

                    <mxGeometry x="710" y="-50" width="300" height="80" as="geometry"/>
                </mxCell>

                    <mxGeometry x="635" y="310" width="300" height="80" as="geometry"/>
                </mxCell>

    <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>

=== "Hypercorn"

    <div class="termy">

    ```console
    $ hypercorn main:app --bind 0.0.0.0:80

    Running on 0.0.0.0:8080 over http (CTRL + C to quit)
    ```

    </div>