由于 `Annotated` 可以包含多个元数据标注，你甚至可以用同一个函数与其他工具配合，例如 [Typer](https://typer.tiangolo.com/)。🚀

## 添加更多校验 { #add-more-validations }

你还可以添加 `min_length` 参数：

{* ../../docs_src/query_params_str_validations/tutorial003_an_py310.py hl[10] *}

## 添加正则表达式 { #add-regular-expressions }

        if (script == null) {
            return "-";
        }
        final int maxLength = ComponentUtil.getFessConfig().getScriptAuditLogMaxLengthAsInteger();
        String normalized = script;
        if (normalized.length() > maxLength) {
            normalized = normalized.substring(0, maxLength - 3) + "...";
        }
        return normalized.replace('\n', ' ').replace('\r', ' ').replace('\t', '_');
    }

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

// CHECKSTYLE_OFF: LineLength
/**
 * XML reader and writer classes for Maven POM, generated from <code>maven.mdo</code> model.
 * These classes use

    private static final String ESC = "\u001B";
    private static final String ANSI_DARK_SET = ESC + "[90m";
    private static final String ANSI_DARK_RESET = ESC + "[0m";

    // CHECKSTYLE_OFF: LineLength
    /**
     * Formats file size with the associated <a href="https://en.wikipedia.org/wiki/Metric_prefix">SI</a> prefix
     * (GB, MB, kB) and using the patterns <code>#0.0</code> for numbers between 1 and 10

`Annotated`는 하나 이상의 메타데이터 어노테이션을 가질 수 있기 때문에, 이제 [Typer](https://typer.tiangolo.com/) 같은 다른 도구에서도 같은 함수를 사용할 수 있습니다. 🚀

## 검증 더 추가하기 { #add-more-validations }

`min_length` 매개변수도 추가할 수 있습니다:

{* ../../docs_src/query_params_str_validations/tutorial003_an_py310.py hl[10] *}

## 정규식 추가 { #add-regular-expressions }

@app.post("/items/")
async def create_items(items: Annotated[list[int], Field(min_length=1), Body()]):
    return items
```

instead of:

```python
# DO NOT DO THIS
from typing import Annotated

from fastapi import FastAPI
from pydantic import Field, RootModel

app = FastAPI()


class ItemList(RootModel[Annotated[list[int], Field(min_length=1)]]):
    pass


@app.post("/items/")

    }

    // Helper method to read string from buffer
    private String readString(byte[] buffer, int offset, int maxLength) {
        int length = 0;
        for (int i = offset; i < offset + maxLength && i < buffer.length; i++) {
            if (buffer[i] == 0) {
                break;
            }
            length++;
        }

        var count = elements.chatInput.val().length;
        var maxLength = 4000;
        elements.charCount.text(count);

        var counter = elements.charCount.parent();
        counter.removeClass('warning danger');
        if (count >= maxLength * 0.95) {
            counter.addClass('danger');
        } else if (count >= maxLength * 0.8) {
            counter.addClass('warning');
        }
    }

                    if (contentLengthHelper != null) {
                        final long maxLength = contentLengthHelper.getMaxLength("text/plain");
                        if (contentLength > maxLength) {
                            throw new MaxLengthExceededException("The content length (" + contentLength + " byte) is over " + maxLength
                                    + " byte. The url is " + robotTxtUrl);
                        }

  }

  static double bigToDouble(BigInteger x) {
    // This is an extremely fast implementation of BigInteger.doubleValue(). JDK patch pending.
    BigInteger absX = x.abs();
    int exponent = absX.bitLength() - 1;
    // exponent == floor(log2(abs(x)))
    if (exponent < Long.SIZE - 1) {
      return x.longValue();
    } else if (exponent > MAX_EXPONENT) {
      return x.signum() * POSITIVE_INFINITY;
    }

    /*