Lassen Sie uns die von **FastAPI** bereitgestellten Tools verwenden, um Sicherheit zu gewährleisten.

## Wie es aussieht

Lassen Sie uns zunächst einfach den Code verwenden und sehen, wie er funktioniert, und dann kommen wir zurück, um zu verstehen, was passiert.

## `main.py` erstellen

Kopieren Sie das Beispiel in eine Datei `main.py`:

//// tab | Python 3.9+

```Python
{!> ../../docs_src/security/tutorial001_an_py39.py!}

 * the License.
 */

package com.google.common.collect.testing.google;

import static com.google.common.collect.testing.features.CollectionSize.ZERO;
import static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.features.CollectionSize;
import org.junit.Ignore;

/**

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.Tables.transformValues;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.TableCollectionTest.RowTests;
import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.Tables.unmodifiableRowSortedTable;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.TableCollectionTest.ColumnMapTests;
import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.Tables.unmodifiableTable;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.TableCollectionTest.RowMapTests;
import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault

 * the License.
 */

package com.google.common.collect.testing.google;

import static com.google.common.collect.testing.features.CollectionSize.ZERO;
import static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.features.CollectionSize;
import org.junit.Ignore;

/**

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.Tables.unmodifiableRowSortedTable;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.TableCollectionTest.RowTests;
import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.Tables.unmodifiableTable;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.TableCollectionTest.ColumnMapTests;
import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.Tables.unmodifiableTable;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.TableCollectionTest.ColumnTests;
import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.Tables.transformValues;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.TableCollectionTest.RowMapTests;
import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault