cpovirk <******@****.***> 1754855482 -0700

Klaus Post <******@****.***> 1683341592 -0700

cpovirk <******@****.***> 1754855482 -0700

Krishnan Parthasarathi <******@****.***> 1666726617 -0700

 * Static utilities relating to Java reflection.
 *
 * @since 12.0
 */
public final class Reflection {

  /**
   * Returns the package name of {@code clazz} according to the Java Language Specification (section
   * 6.7). Unlike {@link Class#getPackage}, this method only parses the class name, without
   * attempting to define the {@link Package} and hence load files.
   */
  public static String getPackageName(Class<?> clazz) {

	_ = x[HandlerGetPeerBucketMetrics-61]
	_ = x[HandlerStorageInfo-62]
	_ = x[HandlerConsoleLog-63]
	_ = x[HandlerListDir-64]
	_ = x[HandlerGetLocks-65]
	_ = x[HandlerBackgroundHealStatus-66]
	_ = x[HandlerGetLastDayTierStats-67]
	_ = x[HandlerSignalService-68]
	_ = x[HandlerGetBandwidth-69]
	_ = x[HandlerWriteAll-70]
	_ = x[HandlerListBuckets-71]
	_ = x[HandlerRenameDataInline-72]
	_ = x[HandlerRenameData2-73]
	_ = x[HandlerCheckParts2-74]

  }

  /** Used for tags and subidentifiers. */
  private fun writeVariableLengthLong(v: Long) {
    val sink = sink()
    val bitCount = 64 - java.lang.Long.numberOfLeadingZeros(v)
    val byteCount = (bitCount + 6) / 7
    for (shift in (byteCount - 1) * 7 downTo 0 step 7) {
      val lastBit = if (shift == 0) 0 else 0b1000_0000
      sink.writeByte(((v shr shift) and 0b0111_1111).toInt() or lastBit)
    }
  }

Aber wenn Sie wollen, dass ein Query-Parameter erforderlich ist, vergeben Sie einfach keinen Defaultwert:

{* ../../docs_src/query_params/tutorial005_py310.py hl[6:7] *}

Hier ist `needy` ein erforderlicher Query-Parameter vom Typ `str`.

Wenn Sie in Ihrem Browser eine URL wie:

```
http://127.0.0.1:8000/items/foo-item
```

## 必选查询参数 { #required-query-parameters }

为不是路径参数的参数声明默认值（至此，仅有查询参数），该参数就不是必选的了。

如果只想把参数设为可选，但又不想指定参数的值，则要把默认值设为 `None`。

如果要把查询参数设置为必选，就不要声明默认值：

{* ../../docs_src/query_params/tutorial005_py310.py hl[6:7] *}

这里的查询参数 `needy` 是类型为 `str` 的必选查询参数。

在浏览器中打开如下 URL：

```
http://127.0.0.1:8000/items/foo-item
```

...因为路径中没有必选参数 `needy`，返回的响应中会显示如下错误信息：

```JSON
{
  "detail": [

Ancak bir query parametresini zorunlu yapmak istediğinizde, herhangi bir varsayılan değer tanımlamamanız yeterlidir:

{* ../../docs_src/query_params/tutorial005_py310.py hl[6:7] *}

Burada query parametresi `needy`, `str` tipinde zorunlu bir query parametresidir.

Tarayıcınızda şöyle bir URL açarsanız:

```
http://127.0.0.1:8000/items/foo-item
```