T1, ADD4, CAR1, CAR2 // VACCCQ VADDEUQM T1, ADD4, CAR1, T1 // VACQ VADDUQM T2, CAR2, T2 // VAQ LXVD2X (R18)(CPOOL), SEL2 LXVD2X (R19)(CPOOL), SEL3 LXVD2X (R20)(CPOOL), SEL4 VPERM RED3, T0, SEL2, RED1 // [d0 0 d1 d0] VPERM RED3, T0, SEL3, RED2 // [ 0 d1 d0 d1] VPERM RED3, T0, SEL4, RED3 // [ 0 0 d1 d0] VSUBUQM RED2, RED3, RED2 // Guaranteed not to underflow // VSQ VSLDOI $12, T1, T0, T0 // VSLDB VSLDOI $12, T2, T1, T1 // VSLDB VADDCUQ T0, ADD3H, CAR1 // VACCQ VADDUQM T0, ADD3H, T0 // VAQ VADDECUQ...

 * implement {@link java.util.RandomAccess}.
 *
 * <p>This class is not threadsafe when any concurrent operations update the multimap. Concurrent
 * read operations will work correctly. To allow concurrent update operations, wrap your multimap
 * with a call to {@link Multimaps#synchronizedListMultimap}.
 *
 * <p>See the Guava User Guide article on <a href=

    for (int i = 0; i < 100; i++) {
      descending[i] = (byte) (99 - i);
    }
    assertCrc(0xd022db97, descending);
  }

  public void testScsiReadCommand() {
    // Test SCSI read command.
    byte[] scsiReadCommand =
        new byte[] {
          0x01, (byte) 0xc0, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00,

### Dateien und Async { #files-and-async }

In den meisten Fällen sind dateiähnliche Objekte standardmäßig nicht mit async und await kompatibel.

Beispielsweise haben sie kein `await file.read()` oder `async for chunk in file`.

Und in vielen Fällen wäre das Lesen eine blockierende Operation (die die Event-Loop blockieren könnte), weil von der Festplatte oder aus dem Netzwerk gelesen wird.

/// info | Info

        assertTrue(fullEntry.hasReadCache());
        assertTrue(fullEntry.hasWriteCache());
        assertTrue(fullEntry.hasHandleCache());

        // Test read-only lease
        Smb2LeaseKey readKey = leaseManager.requestLease(path + "2", Smb2LeaseState.SMB2_LEASE_READ_CACHING);
        leaseManager.updateLease(readKey, Smb2LeaseState.SMB2_LEASE_READ_CACHING);

$ $Env:MY_NAME = "Wade Wilson"

// L'utiliser avec d'autres programmes, par exemple
$ echo "Hello $Env:MY_NAME"

Hello Wade Wilson
```

</div>

////

## Lire des variables d'environnement en Python { #read-env-vars-in-python }

Vous pouvez également créer des variables d'environnement **en dehors** de Python, dans le terminal (ou par tout autre moyen), puis les **lire en Python**.

Um **gerenciador de contexto** em Python é algo que você pode usar em uma declaração `with`, por exemplo, `open()` pode ser usado como um gerenciador de contexto:

```Python
with open("file.txt") as file:
    file.read()
```

Em versões mais recentes do Python, há também um **gerenciador de contexto assíncrono**. Você o usaria com `async with`:

```Python
async with lifespan(app):
    await do_stuff()
```

如果你已经有 **FastAPI Cloud** 账号（我们从候补名单邀请了你 😉），你可以用一个命令部署你的应用。

<div class="termy">

```console
$ fastapi deploy

Deploying to FastAPI Cloud...

✅ Deployment successful!

🐔 Ready the chicken! Your app is ready at https://myapp.fastapicloud.dev
```

</div>

就这样！现在你可以通过该 URL 访问你的应用了。✨

#### 关于 FastAPI Cloud { #about-fastapi-cloud }

[build-system]
requires = ["pdm-backend"]
build-backend = "pdm.backend"

[project]
name = "fastapi"
dynamic = ["version"]
description = "FastAPI framework, high performance, easy to learn, fast to code, ready for production"
readme = "README.md"
license = "MIT"
license-files = ["LICENSE"]
requires-python = ">=3.10"
authors = [
    { name = "Sebastián Ramírez", email = "******@****.***" },
]
classifiers = [

		LockEnabled: true,
	}

	expiryWorker := func(wg *sync.WaitGroup, readyCh chan<- struct{}, taskCh <-chan expiryOp, gotExpired *[]ObjectToDelete) {
		defer wg.Done()
		// signal the calling goroutine that the worker is ready tor receive tasks
		close(readyCh)
		var expired []ObjectToDelete
		for t := range taskCh {
			switch v := t.(type) {
			case noncurrentVersionsTask:
				expired = append(expired, v.versions...)