# 第一步

最簡單的 FastAPI 檔案可能看起來像這樣：

{* ../../docs_src/first_steps/tutorial001.py *}

將其複製到一個名為 `main.py` 的文件中。

執行即時重新載入伺服器（live server）：

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:single">main.py</u>
<font color="#3465A4">INFO    </font> Using path <font color="#3465A4">main.py</font>

	globalObjLayerMutex.Lock()
	globalObjectAPI = objLayer
	globalObjLayerMutex.Unlock()
	return objLayer, erasureDirs, nil
}

// cmdType - Represents different service subcomands like status, stop
// and restart.
type cmdType int

const (
	restartCmd cmdType = iota
	stopCmd
)

// toServiceSignal - Helper function that translates a given cmdType

	// Captures site name and region
	globalSite config.Site

	// MinIO local server address (in `host:port` format)
	globalMinioAddr = ""

	// MinIO default port, can be changed through command line.
	globalMinioPort        = GlobalMinioDefaultPort
	globalMinioConsolePort = "13333"

	// Holds the host that was passed using --address
	globalMinioHost = ""
	// Holds the host that was passed using --console-address

                }
            }
        }
        return queryBuf.toString().trim();
    }

    /**
     * Appends various search conditions to the query buffer.
     * Processes advanced search parameters like occurrence, phrases, OR queries, NOT queries,
     * file types, site searches, and timestamp filters.
     *
     * @param queryBuf the StringBuilder to append conditions to

  fi
  while IFS="=" read -r key value; do
    # Remove '\r' from value to allow usage on windows as IFS does not consider '\r' as a separator ( considers space, tab, new line ('\n'), and custom '=' )
    safeValue=$(echo "$value" | tr -d '\r')
    case "$key" in wrapperUrl)
      wrapperUrl="$safeValue"
      break
      ;;
    esac

* **Linux:** `${HOME}/.minio/certs`
* **Windows:** `%%USERPROFILE%%\.minio\certs`

**Note:**

* Location of custom certs directory can be specified using `--certs-dir` command line option.
* Inside the `certs` directory, the private key must by named `private.key` and the public key must be named `public.crt`.

 * This class contains a Kotlin implementation of the pseudocode specified by RFC 3492. It includes
 * direct translation of the pseudocode presented there.
 *
 * Partner this class with [UTS #46] to implement IDNA2008 [RFC 5890] like most browsers do.
 *
 * [RFC 3492]: https://datatracker.ietf.org/doc/html/rfc3492
 * [RFC 5890]: https://datatracker.ietf.org/doc/html/rfc5890
 * [UTS #46]: https://www.unicode.org/reports/tr46/
 */
object Punycode {

    elementsPlus.add(AFTER_LAST_2);
    return Ordering.explicit(new ArrayList<>(elementsPlus));
  }

  /*
   * All the ContiguousSet generators below manually reject nulls here. In principle, we'd like to
   * defer that to Range, since it's ContiguousSet.create() that's used to create the sets. However,
   * that gets messy here, and we already have null tests for Range.
   */

  /*

        """.trimMargin(),
      )
      for (line in bodyLines) {
        writeUtf8(line)
        writeUtf8("\n")
      }
    }
  }

  private fun readJournalLines(): List<String> {
    val result = mutableListOf<String>()
    filesystem.read(journalFile) {
      while (true) {
        val line = readUtf8Line() ?: break
        result.add(line)
      }
    }
    return result
  }

      setException(e);
      return;
    } catch (Error e) {
      /*
       * StackOverflowError, OutOfMemoryError (e.g., from allocating ExecutionException), or
       * something. Try to treat it like a RuntimeException. If we overflow the stack again, the
       * resulting Error will propagate upward up to the root call to set().
       */
      setException(e);
      return;
    }

    T transformResult;