```

例如，OAuth2 规范的 "密码流" 模式规定要通过表单字段发送 `username` 和 `password`。

<abbr title="specification">该规范</abbr>要求字段必须命名为 `username` 和 `password`，并通过表单字段发送，不能用 JSON。

使用 `Form` 可以声明与 `Body` （及 `Query`、`Path`、`Cookie`）相同的元数据和验证。

/// info | "说明"

`Form` 是直接继承自 `Body` 的类。

///

/// tip | "提示"

声明表单体要显式使用 `Form` ，否则，FastAPI 会把该参数当作查询参数或请求体（JSON）参数。

///

## 关于 "表单字段"

                            "required": True,
                            "schema": {"title": "Item Id", "type": "integer"},
                            "name": "item_id",
                            "in": "path",
                        }
                    ],
                    "requestBody": {
                        "content": {
                            "application/json": {

                            "required": True,
                            "schema": {"title": "Item Id", "type": "integer"},
                            "name": "item_id",
                            "in": "path",
                        }
                    ],
                    "requestBody": {
                        "content": {
                            "application/json": {

                        {
                            "required": True,
                            "schema": {"title": "Name", "type": "string"},
                            "name": "name",
                            "in": "path",
                        }
                    ],
                    "responses": {
                        "200": {
                            "description": "Successful Response",

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package install

import (
	"os"
	"path/filepath"
	"testing"

	"istio.io/istio/cni/pkg/config"
	testutils "istio.io/istio/pilot/test/util"
)

const (
	k8sServiceHost = "10.96.0.1"
	k8sServicePort = "443"
	kubeCAFilepath = "testdata/kube-ca.crt"

			inFilter: &ListenerFilter{
				Address: "",
				Port:    0,
				Type:    "",
			},
			inListener: &listener.Listener{
				Address: &core.Address{
					Address: &core.Address_Pipe{
						Pipe: &core.Pipe{Path: "unix:///dev/shm/uds.socket"},
					},
				},
			},
			expect: true,
		},
	}

	for _, tt := range tests {
		t.Run(tt.desc, func(t *testing.T) {

```Python hl_lines="21  26"
{!../../docs_src/metadata/tutorial004.py!}
```

/// info | "Дополнительная информация"

Узнайте больше о тегах в [Конфигурации операции пути](path-operation-configuration.md#_3){.internal-link target=_blank}.

///

### Проверьте документацию

Теперь, если вы проверите документацию, вы увидите всю дополнительную информацию:

    }

    static String showFileOnCommit(String commit, String filePath) {
        ExecResult execResult = exec("git show $commit:$filePath")
        if (execResult.returnCode != 0 && execResult.stderr ==~ /path '.*' exists on disk, but not in '.*'/) {
            println("File $filePath does not exist on commit $commit, skip.")
            throw new AbortException()
        }
        return execResult.stdout
    }

     * respect to other filesystem activities.
     * 
     * @throws CIFSException
     */
    void createNewFile () throws CIFSException;


    /**
     * Creates a directory with the path specified by this <tt>SmbResource</tt>
     * and any parent directories that do not exist. This method will fail
     * when used with <code>smb://</code>, <code>smb://workgroup/</code>,

```JSON
{
    "detail": [
        {
            "loc": [
                "path",
                "item_id"
            ],
            "msg": "value is not a valid integer",
            "type": "type_error.integer"
        }
    ]
}
```

eine Textversion:

```
1 validation error
path -> item_id
  value is not a valid integer (type=type_error.integer)
```