</div>
                                </div>
                                <c:if test="${crudMode==2}">
                                    <div class="form-group row">
                                        <label class="col-sm-3 text-sm-right col-form-label"><la:message

# 表单数据

接收的不是 JSON，而是表单字段时，要使用 `Form`。

/// info | "说明"

要使用表单，需预先安装 <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>。

例如，`pip install python-multipart`。

///

## 导入 `Form`

从 `fastapi` 导入 `Form`：

```Python hl_lines="1"
{!../../docs_src/request_forms/tutorial001.py!}
```

## 定义 `Form` 参数

创建表单（`Form`）参数的方式与 `Body` 和 `Query` 一样：

                            <div class="card-body">
                                <div class="form-group row">
                                    <span class="font-weight-bold col-sm-3 text-sm-right col-form-label"><la:message
                                            key="labels.replace_aliases"/></span>
                                    <div class="form-inline col-sm-9">
                                        <la:errors property="replaceAliases"/>

    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse delete(final DeleteForm form) {
        validate(form, messages -> {}, () -> asHtml(path_AdminPlugin_AdminPluginJsp));
        verifyToken(() -> asHtml(path_AdminPlugin_AdminPluginJsp));
        final Artifact artifact = new Artifact(form.name, form.version, null);
        deleteArtifact(artifact);

     restrict the recipients’ rights in the Source Code Form.

3.2. Distribution of Executable Form

     If You distribute Covered Software in Executable Form then:

     a. such Covered Software must also be made available in Source Code Form,
        as described in Section 3.1, and You must inform recipients of the
        Executable Form how they can obtain a copy of such Source Code Form by

                                        <la:text styleId="regex" property="regex" styleClass="form-control"/>
                                    </div>
                                </div>
                                <div class="form-group row">
                                    <label for="replacement" class="col-sm-3 text-sm-right col-form-label"><la:message
                                            key="labels.replacement"/></label>

                                        <la:text styleId="term" property="term" styleClass="form-control"/>
                                    </div>
                                </div>
                                <div class="form-group row">
                                    <label for="content" class="col-sm-3 text-sm-right col-form-label"><la:message
                                            key="labels.related_content_content"/></label>

    with pytest.raises(RuntimeError, match=multipart_incorrect_install_error):
        app = FastAPI()

        @app.post("/")
        async def root(username: str = Form(), password: str = Form()):
            return username  # pragma: nocover


def test_incorrect_multipart_installed_form_file(monkeypatch):
    monkeypatch.setattr("python_multipart.__version__", "0.0.12")

                                        <la:text styleId="name" property="name" styleClass="form-control"/>
                                    </div>
                                </div>
                                <div class="form-group row">
                                    <label for="value" class="col-sm-3 text-sm-right col-form-label"><la:message
                                            key="labels.reqheader_value"/></label>

from fastapi import FastAPI, Form
from fastapi.testclient import TestClient
from typing_extensions import Annotated

app = FastAPI()


@app.post("/form/")
def post_form(username: Annotated[str, Form()]):
    return username


client = TestClient(app)


def test_single_form_field():
    response = client.post("/form/", data={"username": "Rick"})
    assert response.status_code == 200, response.text