final Path baseDir = Files.createDirectories(tempDir.resolve("vardata"));
        System.setProperty("fess.var.path", baseDir.toString());

        // A directory that does NOT share the prefix
        final Path otherDir = Files.createDirectories(tempDir.resolve("other"));
        final File fileInOther = new File(otherDir.toFile(), "test.txt");
        fileInOther.createNewFile();

```

如此一來，你只需撰寫一次共用程式碼，**FastAPI** 會替你的各個「路徑操作」呼叫它。

/// check | 檢查

注意，你不必建立特殊的類別並把它傳到 **FastAPI** 去「註冊」或做類似的事。

只要把它傳給 `Depends`，**FastAPI** 就知道該怎麼處理其餘的部分。

///

## 共用 `Annotated` 依賴 { #share-annotated-dependencies }

在上面的範例中，可以看到有一點點的「重複程式碼」。

當你要使用 `common_parameters()` 這個依賴時，你得寫出完整的型別註解搭配 `Depends()`：

```Python
commons: Annotated[dict, Depends(common_parameters)]
```

      "control" means (i) the power, direct or indirect, to cause the
      direction or management of such entity, whether by contract or
      otherwise, or (ii) ownership of fifty percent (50%) or more of the
      outstanding shares, or (iii) beneficial ownership of such entity.

      "You" (or "Your") shall mean an individual or Legal Entity
      exercising permissions granted by this License.

            p++;
        }
        while (p < len && pathInfo.charAt(p) == '/') {
            p++;
        }
        if (p < len) { /* then there must be a share */
            out[i] = '/';
            i++;
            do { /* collect the share name */
                out[i++] = ch = pathInfo.charAt(p++);
            } while (p < len && ch != '/');
        }
        return new String(out, 0, i);
    }

          required: false
          schema:
            type: string
            example: en
        - name: preference
          in: query
          description: String to specify a shard for searching
          required: false
          schema:
            type: string
            example: abc
        - name: callback
          in: query
          description: Callback name for using JSONP

 * and remove old {@code .sha1} files that are no longer needed.
 * <p>
 * Every jar must also have a LICENSE and NOTICE file. However, multiple jars can share
 * LICENSE and NOTICE files by mapping a pattern to the same name.
 * <pre>
 *   dependencyLicenses {
 *     mapping from: &#47;lucene-.*&#47;, to: "lucene"
 *   }
 * </pre>

Sie übergeben es einfach an `Depends` und **FastAPI** weiß, wie der Rest erledigt wird.

///

## `Annotated`-Abhängigkeiten wiederverwenden { #share-annotated-dependencies }

In den Beispielen oben sehen Sie, dass es ein kleines bisschen **Codeverdoppelung** gibt.

    /**
     * SMB TRANS2 subcommand for setting file information
     */
    public static final byte TRANS2_SET_FILE_INFORMATION = (byte) 0x08;

    /**
     * Network share enumeration subcommand
     */
    public static final byte NET_SHARE_ENUM = (byte) 0x00;
    /**
     * Network server enumeration subcommand version 2
     */
    public static final byte NET_SERVER_ENUM2 = (byte) 0x68;

        }
      }
    }
  }

  /**
   * Object class to adapter type. This approach limits us to one adapter per Kotlin class, which
   * might be too few for values like UTF_STRING and OBJECT_IDENTIFIER that share a Kotlin class but
   * have very different ASN.1 interpretations.
   */
  private val defaultAnyChoices =
    listOf(
      Boolean::class to BOOLEAN,
      BigInteger::class to INTEGER_AS_BIG_INTEGER,

Vous la passez simplement à `Depends` et **FastAPI** sait faire le reste.

///

## Partager des dépendances `Annotated` { #share-annotated-dependencies }

Dans les exemples ci-dessus, vous voyez qu’il y a un tout petit peu de **duplication de code**.