所以，下面这部分代码才会运行：

```Python
    uvicorn.run(app, host="0.0.0.0", port=8000)
```

---

如果你是导入这个模块（文件）就不会这样。

因此，如果你的另一个文件 `importer.py` 像这样：

```Python
from myapp import app

# 其他一些代码
```

在这种情况下，`myapp.py` 内部的自动变量不会有值为 `"__main__"` 的变量 `__name__`。

所以，下面这一行不会被执行：

```Python
    uvicorn.run(app, host="0.0.0.0", port=8000)
```

/// info | 信息

# `auditlog-echo`: A tool to view MinIO Audit logs on the console

1. Run the tool with:

```
go run docs/auditlog/auditlog-echo.go
```

The listen port has a default value (8080), but can be set with the `-port` flag.

2. Configure audit logging in MinIO with for example:

```
mc admin config set myminio audit_webhook enable=on endpoint=http://localhost:8080
```

因此，這段：

```Python
    uvicorn.run(app, host="0.0.0.0", port=8000)
```

會被執行。

---

如果你是匯入該模組（檔案），就不會發生這件事。

所以，如果你有另一個檔案 `importer.py`，內容如下：

```Python
from myapp import app

# 其他程式碼
```

在那種情況下，`myapp.py` 中自動建立的變數 `__name__` 就不會是 `"__main__"`。

因此，這一行：

```Python
    uvicorn.run(app, host="0.0.0.0", port=8000)
```

就不會被執行。

/// info | 說明

    }

    @Test
    public void test_add_originsWithDifferentPorts() {
        // Setup
        String origin8080 = "https://example.com:8080";
        String origin8443 = "https://example.com:8443";
        TestCorsHandler handler8080 = new TestCorsHandler("handler-8080");
        TestCorsHandler handler8443 = new TestCorsHandler("handler-8443");

        // Execute
        corsHandlerFactory.add(origin8080, handler8080);

</div>

dann hat in Ihrer Datei die interne Variable `__name__`, die von Python automatisch erstellt wird, als Wert den String `"__main__"`.

Daher wird der Abschnitt:

```Python
    uvicorn.run(app, host="0.0.0.0", port=8000)
```

ausgeführt.

---

Dies wird nicht passieren, wenn Sie das Modul (die Datei) importieren.

Wenn Sie also eine weitere Datei `importer.py` mit folgendem Inhalt haben:

```Python

    browser = playwright.chromium.launch(headless=False)
    # Update the viewport manually
    context = browser.new_context(viewport={"width": 960, "height": 1080})
    page = context.new_page()
    page.goto("http://localhost:8000/docs")
    page.get_by_text("POST/items/Create Item").click()
    page.get_by_role("tab", name="Schema").first.click()
    # Manually add the screenshot
    page.screenshot(

    browser = playwright.chromium.launch(headless=False)
    # Update the viewport manually
    context = browser.new_context(viewport={"width": 960, "height": 1080})
    page = context.new_page()
    page.goto("http://localhost:8000/docs")
    page.get_by_role("button", name="Item-Input").click()
    page.get_by_role("button", name="Item-Output").click()
    page.set_viewport_size({"width": 960, "height": 820})
    # Manually add the screenshot

	flag.StringVar(&configEndpoint, "config-ep",
		"http://localhost:8080/auth/realms/minio/.well-known/openid-configuration",
		"OpenID discovery document endpoint")
	flag.StringVar(&clientID, "cid", "", "Client ID")
	flag.StringVar(&clientSec, "csec", "", "Client Secret")
	flag.StringVar(&clientScopes, "cscopes", "openid", "Client Scopes")
	flag.IntVar(&port, "port", 8080, "Port")
}

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def root():
    a = "a"
    b = "b" + a
    return {"hello world": b}


if __name__ == "__main__":

      assertFalse(aa.compareAndSet(i, -0.0, 7.0));
      assertFalse(aa.weakCompareAndSet(i, -0.0, 7.0));
      assertBitEquals(+0.0, aa.get(i));
      assertTrue(aa.compareAndSet(i, +0.0, -0.0));
      assertBitEquals(-0.0, aa.get(i));
      assertFalse(aa.compareAndSet(i, +0.0, 7.0));
      assertFalse(aa.weakCompareAndSet(i, +0.0, 7.0));
      assertBitEquals(-0.0, aa.get(i));
    }
  }