# 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：

    ```

The files and form fields will be uploaded as form data and you will receive the files and form fields.

And you can declare some of the files as `bytes` and some as `UploadFile`.

!!! warning

  private fun assertDateInRange(
    minimum: Long,
    actual: Long,
    maximum: Long,
  ) {
    assertThat(actual, "${format(minimum)} <= ${format(actual)} <= ${format(maximum)}")
      .isBetween(minimum, maximum)
  }

  private fun format(time: Long) = SimpleDateFormat("HH:mm:ss.SSS").format(Date(time))

    val direction = if (inbound) "<<" else ">>"
    return format(
      "%s 0x%08x %5d %-13s %d",
      direction,
      streamId,
      length,
      formattedType,
      windowSizeIncrement,
    )
  }

  internal fun formattedType(type: Int): String = if (type < FRAME_NAMES.size) FRAME_NAMES[type] else format("0x%02x", type)

  /**

    <module>plexus-archiver</module>
    <module>plexus-bayesian</module>
    <module>plexus-command</module>
    <module>plexus-compiler</module>
    <module>plexus-drools</module>
    <module>plexus-formica</module>
    <module>plexus-formica-web</module>
    <module>plexus-hibernate</module>
    <module>plexus-i18n</module>
    <module>plexus-interactivity</module>
    <module>plexus-ircbot</module>
    <module>plexus-jdo</module>

            file
        )
    }

    private
    fun getBuildTimestampAsString() =
        buildTimestamp.get().let { timestampFormat.format(it) }

    private
    fun getBuildTimestampAsIsoString() =
        buildTimestamp.get().let { isoTimestampFormat.format(it) }

    private
    fun Logger.logBuildVersion() {
        lifecycle(
            "Version: ${version.get()} " +

private val TYPE_SUBTYPE = Regex("$TOKEN/$TOKEN")
private val PARAMETER = Regex(";\\s*(?:$TOKEN=(?:$TOKEN|$QUOTED))?")

/**
 * Returns a media type for this string.
 *
 * @throws IllegalArgumentException if this is not a well-formed media type.
 */
internal fun String.commonToMediaType(): MediaType {
  val typeSubtype: MatchResult =
    TYPE_SUBTYPE.matchAtPolyfill(this, 0)
      ?: throw IllegalArgumentException("No subtype found for: \"$this\"")

#NOTE: This is a Maven Resolver internal implementation file, its format can be changed without prior notice.
#Wed Jan 05 14:06:51 CET 2022
https\://repo.maven.apache.org/maven2/.lastUpdated=1641388011987

| `license_info` | `dict` | The license information for the exposed API. It can contain several fields. <d...

# For Cygwin and MinGW, switch paths to Windows format before running java(1) command
if $cygwin || $mingw ; then
  [ -n "$JAVA_HOME" ] &&
    JAVA_HOME=`cygpath --windows "$JAVA_HOME"`
  LAUNCHER_JAR=`cygpath --windows "$LAUNCHER_JAR"`
  CLASSWORLDS_CONF=`cygpath --windows "$CLASSWORLDS_CONF"`
  MAVEN_HOME=`cygpath --windows "$MAVEN_HOME"`
  MAVEN_PROJECTBASEDIR=`cygpath --windows "$MAVEN_PROJECTBASEDIR"`
fi

exec "$JAVACMD" \
  $MAVEN_OPTS \