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  1. docs/zh-hant/docs/tutorial/query-params-str-validations.md

    在這種情況下(未使用 `Annotated`),我們必須用 `Query()` 取代函式中的預設值 `None`,因此需要用 `Query(default=None)` 來設定預設值;對 FastAPI 而言,這達到相同目的。
    
    所以:
    
    ```Python
    q: str | None = Query(default=None)
    ```
    
    …會讓參數變為可選、預設值是 `None`,等同於:
    
    ```Python
    q: str | None = None
    ```
    
    但用 `Query` 的版本會明確宣告它是查詢參數。
    
    接著,我們可以傳更多參數給 `Query`。此例中是用於字串的 `max_length` 參數:
    
    ```Python
    q: str | None = Query(default=None, max_length=50)
    ```
    
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Fri Mar 20 17:05:38 GMT 2026
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  2. tests/test_form_default.py

    app = FastAPI()
    
    
    @app.post("/urlencoded")
    async def post_url_encoded(age: Annotated[int | None, Form()] = None):
        return age
    
    
    @app.post("/multipart")
    async def post_multi_part(
        age: Annotated[int | None, Form()] = None,
        file: Annotated[bytes | None, File()] = None,
    ):
        return {"file": file, "age": age}
    
    
    client = TestClient(app)
    
    
    def test_form_default_url_encoded():
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Tue Feb 17 09:59:14 GMT 2026
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  3. docs/de/docs/advanced/advanced-python-types.md

    ```Python
    say_hi(name=None)  # Das funktioniert, None ist gültig 🎉
    ```
    
    Die gute Nachricht ist: In den meisten Fällen können Sie einfach `|` verwenden, um Unions von Typen zu definieren:
    
    ```python
    def say_hi(name: str | None):
        print(f"Hey {name}!")
    ```
    
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Sat Feb 14 07:57:30 GMT 2026
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  4. docs/fr/docs/advanced/advanced-python-types.md

    ```Python
    say_hi(name=None)  # Ceci fonctionne, None est valide 🎉
    ```
    
    La bonne nouvelle, c'est que, dans la plupart des cas, vous pourrez simplement utiliser `|` pour définir des unions de types :
    
    ```python
    def say_hi(name: str | None):
        print(f"Hey {name}!")
    ```
    
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Sat Feb 14 08:12:41 GMT 2026
    - 2.3K bytes
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  5. tests/test_tutorial/test_body_multiple_params/test_tutorial004.py

                "price": 50.5,
                "description": None,
                "tax": None,
            },
            "user": {"username": "Dave", "full_name": None},
        }
    
    
    def test_put_missing_body(client: TestClient):
        response = client.put("/items/5")
        assert response.status_code == 422
        assert response.json() == {
            "detail": [
                {
                    "input": None,
                    "loc": [
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Thu Feb 12 13:19:43 GMT 2026
    - 10K bytes
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  6. docs/ru/docs/tutorial/query-params-str-validations.md

    Пришло время использовать его с FastAPI. 🚀
    
    У нас была такая аннотация типа:
    
    ```Python
    q: str | None = None
    ```
    
    Мы «обернём» это в `Annotated`, и получится:
    
    ```Python
    q: Annotated[str | None] = None
    ```
    
    Обе версии означают одно и то же: `q` — параметр, который может быть `str` или `None`, и по умолчанию равен `None`.
    
    А теперь к самому интересному. 🎉
    
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Thu Mar 19 17:56:20 GMT 2026
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  7. src/bytes/bytes.go

    // It returns the byte index in s of the first Unicode
    // code point satisfying f(c), or -1 if none do.
    func IndexFunc(s []byte, f func(r rune) bool) int {
    	return indexFunc(s, f, true)
    }
    
    // LastIndexFunc interprets s as a sequence of UTF-8-encoded code points.
    // It returns the byte index in s of the last Unicode
    // code point satisfying f(c), or -1 if none do.
    func LastIndexFunc(s []byte, f func(r rune) bool) int {
    Created: Tue Apr 07 11:13:11 GMT 2026
    - Last Modified: Thu Mar 12 17:56:55 GMT 2026
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  8. docs/de/docs/tutorial/query-params-str-validations.md

    Wir hatten diese Typannotation:
    
    ```Python
    q: str | None = None
    ```
    
    Was wir tun werden, ist, dies mit `Annotated` zu wrappen, sodass es zu:
    
    ```Python
    q: Annotated[str | None] = None
    ```
    
    Beide dieser Versionen bedeuten dasselbe: `q` ist ein Parameter, der ein `str` oder `None` sein kann, und standardmäßig ist er `None`.
    
    Jetzt springen wir zu den spannenden Dingen. 🎉
    
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Thu Mar 19 17:58:09 GMT 2026
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  9. docs/pt/docs/tutorial/query-params-str-validations.md

    Agora é a hora de usá-lo com FastAPI. 🚀
    
    Tínhamos esta anotação de tipo:
    
    ```Python
    q: str | None = None
    ```
    
    O que faremos é envolver isso com `Annotated`, para que fique assim:
    
    ```Python
    q: Annotated[str | None] = None
    ```
    
    Ambas as versões significam a mesma coisa, `q` é um parâmetro que pode ser `str` ou `None`, e por padrão é `None`.
    
    Agora vamos pular para a parte divertida. 🎉
    
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Thu Mar 19 18:20:43 GMT 2026
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  10. docs_src/dependency_testing/tutorial001_py310.py

    
    async def override_dependency(q: str | None = None):
        return {"q": q, "skip": 5, "limit": 10}
    
    
    app.dependency_overrides[common_parameters] = override_dependency
    
    
    def test_override_in_items():
        response = client.get("/items/")
        assert response.status_code == 200
        assert response.json() == {
            "message": "Hello Items!",
            "params": {"q": None, "skip": 5, "limit": 10},
        }
    
    
    Created: Sun Apr 05 07:19:11 GMT 2026
    - Last Modified: Sat Mar 18 12:29:59 GMT 2023
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