[ { dictValue: '类型1', rowspan: 2, children: [ { dictValue: '专业分类1-1', rowspan: 2, children: [ { dictValue: '涉及内容1-1-1', checked: false }, { dictValue: '涉及内容1-1-2', checked: false } ] } ] }, { dictValue: '类型2', children: [ { dictValue: '专业分类2-1', rowspan: 2, children: [ { dictValue: '涉及内容2-1-1', checked: false }, { dictValue: '涉及内容2-1-2', checked: false } ] }, { dictValue: '专业分类2-2', rowspan: 2, children: [ { dictValue: '涉及内容2-2-1', checked: false }, { dictValue: '涉及内容2-2-2', checked: false } ] } ] } ]用这些数据使用elm写一个3级的表格

以下是一个使用 Elm 编写的 3 级表格的示例代码，您可以根据您的具体需求进行修改：

module Main exposing (..)

import Browser
import Html exposing (..)
import Html.Attributes exposing (..)
import Html.Events exposing (onClick)


type alias Item =
    { dictValue : String
    , checked : Bool
    }


type alias Category =
    { dictValue : String
    , rowspan : Int
    , children : List SubCategory
    }


type alias SubCategory =
    { dictValue : String
    , rowspan : Int
    , children : List Item
    }


type alias Model =
    { categories : List Category
    }


type Msg
    = CheckItem Int Int Int
    | NoOp


main : Program () Model Msg
main =
    Browser.sandbox
        { init = init
        , view = view
        , update = update
        }


init : Model
init =
    { categories =
        [ { dictValue = "类型1"
          , rowspan = 2
          , children =
                [ { dictValue = "专业分类1-1"
                  , rowspan = 2
                  , children =
                        [ { dictValue = "涉及内容1-1-1", checked = False }
                        , { dictValue = "涉及内容1-1-2", checked = False }
                        ]
                  }
                ]
          }
        , { dictValue = "类型2"
          , children =
                [ { dictValue = "专业分类2-1"
                  , rowspan = 2
                  , children =
                        [ { dictValue = "涉及内容2-1-1", checked = False }
                        , { dictValue = "涉及内容2-1-2", checked = False }
                        ]
                  }
                , { dictValue = "专业分类2-2"
                  , rowspan = 2
                  , children =
                        [ { dictValue = "涉及内容2-2-1", checked = False }
                        , { dictValue = "涉及内容2-2-2", checked = False }
                        ]
                  }
                ]
          }
        ]
    }


view : Model -> Html Msg
view model =
    let
        table =
            table []
                [ tbody []
                    (List.concatMap renderCategory model.categories)
                ]
    in
    div [] [ table ]


renderCategory : Category -> List (Html Msg)
renderCategory category =
    let
        categoryHtml =
            td [ rowSpan category.rowspan ] [ text category.dictValue ]

        subCategoriesHtml =
            List.concatMap renderSubCategory category.children
    in
    categoryHtml :: subCategoriesHtml


renderSubCategory : SubCategory -> List (Html Msg)
renderSubCategory subCategory =
    let
        subCategoryHtml =
            td [ rowSpan subCategory.rowspan ] [ text subCategory.dictValue ]

        itemsHtml =
            List.indexedMap (renderItem subCategory) subCategory.children
    in
    subCategoryHtml :: itemsHtml


renderItem : SubCategory -> Int -> Item -> Html Msg
renderItem subCategory index item =
    let
        itemHtml =
            td []
                [ div []
                    [ input
                        [ type_ "checkbox"
                        , checked item.checked
                        , onClick (CheckItem index (List.length subCategory.children) (if item.checked then -1 else 1))
                        ]
                        []
                    , text item.dictValue
                    ]
                ]
    in
    itemHtml :: [ if index == List.length subCategory.children - 1 then tr [] [] else [] ]


update : Msg -> Model -> ( Model, Cmd Msg )
update msg model =
    case msg of
        CheckItem subCategoryIndex itemCount delta ->
            let
                subCategory =
                    List.indexedMap (\index subCategory -> if index == subCategoryIndex then checkItems subCategory itemCount delta else subCategory) (head model.categories).children

                categories =
                    { model.categories | head = { (head model.categories) | children = subCategory } }
            in
            ( { model | categories = categories }, NoOp )

        NoOp ->
            ( model, NoOp )


checkItems : SubCategory -> Int -> Int -> SubCategory
checkItems subCategory itemCount delta =
    let
        children =
            List.indexedMap (\index item -> if index < itemCount then { item | checked = item.checked == False } else item) subCategory.children

        checkedCount =
            List.sum <| List.map (\item -> if item.checked then 1 else 0) children
    in
    { subCategory | children = children }```

在这个 Elm 示例代码中，我们首先定义了一个模型类型 `Model`，包含了表格中的所有数据。然后在 `init` 函数中初始化了这个模型。接着在 `view` 函数中，我们使用了 `List.concatMap` 函数渲染了表格中的每一行。对于每一行，我们又使用了 `List.concatMap` 函数渲染了该行中的每一个单元格。最后，我们在单元格中使用了一个 `input` 元素和一个 `div` 元素来显示和编辑每一个条目。并且在用户点击复选框时，会触发一个 `CheckItem` 消息，我们在 `update` 函数中对这个消息进行处理，更新模型中的数据。