"R0.20, R0.10, R0.10, R0.10", // #5
        "U4.10", // #6
        "R0.00, R0.94, R0.81, R0.69, R0.57, R0.44, R0.32", // #7
        "R0.20, R0.10, R0.10, R0.10"); // #7 (cont.), note, this matches #5
  }

  public void testBurstyAndUpdate() {
    RateLimiter rateLimiter = RateLimiter.create(1.0, stopwatch);
    rateLimiter.acquire(1); // no wait

        "params": {"q": None, "skip": 5, "limit": 10},
    }


@needs_py310
def test_override_in_users_with_q():
    from docs_src.dependency_testing.tutorial001_py310 import client

    response = client.get("/users/?q=foo")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "message": "Hello Users!",
        "params": {"q": "foo", "skip": 5, "limit": 10},
    }


@needs_py310

  <groupId>ut.simple</groupId>
  <artifactId>parent</artifactId>
  <versioning>
    <latest>1.0</latest>
    <release>1.0</release>
    <versions>
      <version>1.0</version>
    </versions>
    <lastUpdated>20111123122038</lastUpdated>
  </versioning>

    val source1 = relay.newSource()!!.buffer()
    val source2 = relay.newSource()!!.buffer()
    assertThat(source1.readUtf8(10)).isEqualTo("abcdefghij")
    assertThat(source2.readUtf8(10)).isEqualTo("abcdefghij")
    assertThat(source2.readUtf8(10)).isEqualTo("klmnopqrst")
    assertThat(source1.readUtf8(10)).isEqualTo("klmnopqrst")
    assertThat(source1.exhausted()).isTrue()
    assertThat(source2.exhausted()).isTrue()

			chainedCNIPlugin:       true,
			preConfFile:            "00-calico.conflist",
			resultFileName:         "00-calico.conflist",
			expectedOutputFile:     testDataDir + "/expected/10-calico.conflist-istioconfig",
			expectedPostCleanFile:  testDataDir + "/pre/calico.conflist",
			cniConfDirOrderedFiles: []string{"calico.conflist"},
		},
		{
			name:                   "File without pre-plugins--.conf",

            create(
                "a", 2, 'X', "a", 2, 'X', "b", 3, 'X', "b", 2, 'X', "c", 10, 'X', "c", 10, 'X', "c",
                20, 'X', "d", 15, 'X', "d", 20, 'X', "d", 1, 'X', "e", 5, 'X');
    SortedMap<Integer, Character> row = sortedTable.row("c");
    Set<Entry<Integer, Character>> entrySet = row.entrySet();
    assertTrue(entrySet.contains(immutableEntry(10, 'X')));
    assertTrue(entrySet.contains(immutableEntry(20, 'X')));

        });
        th.start();

        final CountDownLatch latch = new CountDownLatch(1);
        deferred.promise().then(response -> latch.countDown());
        assertTrue(latch.await(10, TimeUnit.SECONDS));
    }

    @Test
    public void test_doneAfterResolve() throws Exception {
        final Deferred<SuggestResponse> deferred = new Deferred<>();

        Thread th = new Thread(() -> {

	_ = x[authTypePostPolicy-4]
	_ = x[authTypeStreamingSigned-5]
	_ = x[authTypeSigned-6]
	_ = x[authTypeSignedV2-7]
	_ = x[authTypeJWT-8]
	_ = x[authTypeSTS-9]
	_ = x[authTypeStreamingSignedTrailer-10]
	_ = x[authTypeStreamingUnsignedTrailer-11]
}

const _authType_name = "UnknownAnonymousPresignedPresignedV2PostPolicyStreamingSignedSignedSignedV2JWTSTSStreamingSignedTrailerStreamingUnsignedTrailer"

    assertThat(DoubleMath.mean(11, -22, 44, -88)).isWithin(1.0e-10).of(-13.75);
    assertThat(DoubleMath.mean(11)).isWithin(1.0e-10).of(11.0);
  }

  @GwtIncompatible // DoubleMath.mean
  @SuppressWarnings("deprecation") // test of deprecated method
  public void testMean_longVarargs() {
    assertThat(DoubleMath.mean(11L, -22L, 44L, -88L)).isWithin(1.0e-10).of(-13.75);
    assertThat(DoubleMath.mean(11L)).isWithin(1.0e-10).of(11.0);

## 默认值

查询参数不是路径的固定内容，它是可选的，还支持默认值。

上例用 `skip=0` 和 `limit=10` 设定默认值。

访问 URL：

```
http://127.0.0.1:8000/items/
```

与访问以下地址相同：

```
http://127.0.0.1:8000/items/?skip=0&limit=10
```

但如果访问：

```
http://127.0.0.1:8000/items/?skip=20
```

查询参数的值就是：

* `skip=20`：在 URL 中设定的值
* `limit=10`：使用默认值

## 可选参数

同理，把默认值设为 `None` 即可声明**可选的**查询参数：