2020-07-28 10:03:53 +08:00
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---
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title: Mapping 映射
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2021-01-07 23:35:03 +08:00
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description:
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2020-07-28 10:03:53 +08:00
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type: 0
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group: ⚙ 组件
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menuName: Mapping 映射
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2021-01-07 23:35:03 +08:00
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icon:
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2020-07-28 10:03:53 +08:00
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order: 57
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---
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2021-01-07 23:35:03 +08:00
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2020-07-28 10:03:53 +08:00
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## 基本用法
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2021-01-07 23:35:03 +08:00
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```schema
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{
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"type": "page",
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"body": {
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"type": "mapping",
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"value": "1",
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"map": {
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"1": "第一",
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"2": "第二",
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"3": "第三",
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"*": "其他"
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}
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}
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}
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```
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## 渲染 HTML
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2021-01-07 23:35:03 +08:00
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```schema
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2020-07-28 10:03:53 +08:00
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{
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"type": "page",
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"body": {
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"type": "mapping",
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"value": "2",
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"map": {
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"1": "<span class='label label-info'>漂亮</span>",
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"2": "<span class='label label-success'>开心</span>",
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"3": "<span class='label label-danger'>惊吓</span>",
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"4": "<span class='label label-warning'>紧张</span>",
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"*": "<span class='label label-default'>其他:${type}</span>"
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2020-07-28 10:03:53 +08:00
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}
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}
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}
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```
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2021-11-09 19:42:04 +08:00
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## 支持数组
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> 1.5.0 及以上版本
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如果返回值是数组会显示为多个
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```schema
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{
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"type": "page",
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"body": {
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"type": "mapping",
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"value": ["1", "2", "3", "4", "5"],
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"map": {
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"1": "<span class='label label-info'>漂亮</span>",
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"2": "<span class='label label-success'>开心</span>",
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"3": "<span class='label label-danger'>惊吓</span>",
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"4": "<span class='label label-warning'>紧张</span>",
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"*": "<span class='label label-default'>其他</span>"
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}
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}
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}
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```
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2020-07-28 10:03:53 +08:00
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## 用作 Field 时
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2021-01-07 23:35:03 +08:00
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当用在 Table 的列配置 Column、List 的内容、Card 卡片的内容和表单的 Static-XXX 中时,可以设置`name`属性,映射同名变量
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2020-07-28 10:03:53 +08:00
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### Table 中的列类型
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```schema: scope="body"
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{
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"type": "table",
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"data": {
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"items": [
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{
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"id": "1",
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"type": "1"
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},
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{
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"id": "2",
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"type": "2"
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},
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{
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"id": "3",
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"type": "3"
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}
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]
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},
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"columns": [
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{
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"name": "id",
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"label": "Id"
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},
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{
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"name": "type",
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"label": "映射",
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"type": "mapping",
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"map": {
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"1": "<span class='label label-info'>漂亮</span>",
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"2": "<span class='label label-success'>开心</span>",
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"3": "<span class='label label-danger'>惊吓</span>",
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"4": "<span class='label label-warning'>紧张</span>",
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"*": "其他:${type}"
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}
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}
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]
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}
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```
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List 的内容、Card 卡片的内容配置同上
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### Form 中静态展示
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2021-01-07 23:35:03 +08:00
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```schema: scope="body"
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2020-07-28 10:03:53 +08:00
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{
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"type": "form",
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"data": {
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"type": "2"
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},
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"body": [
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{
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"type": "static-mapping",
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"name": "type",
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"label": "映射",
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"map": {
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"1": "<span class='label label-info'>漂亮</span>",
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"2": "<span class='label label-success'>开心</span>",
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"3": "<span class='label label-danger'>惊吓</span>",
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"4": "<span class='label label-warning'>紧张</span>",
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"*": "其他:${type}"
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}
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}
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]
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}
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```
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2021-04-21 00:08:16 +08:00
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### 布尔值映射
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```schema: scope="body"
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{
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"type": "form",
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"data": {
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"type": true
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},
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"body": [
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{
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"type": "static-mapping",
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"name": "type",
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"label": "映射",
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"map": {
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"1": "<span class='label label-info'>开</span>",
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"0": "<span class='label label-default'>关</span>"
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}
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}
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]
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}
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```
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或者
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```schema: scope="body"
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{
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"type": "form",
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"data": {
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"type": true
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},
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"body": [
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{
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"type": "static-mapping",
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"name": "type",
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"label": "映射",
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"map": {
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"true": "<span class='label label-info'>开</span>",
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"false": "<span class='label label-default'>关</span>"
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}
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}
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]
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}
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```
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2021-04-06 20:06:13 +08:00
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### 远程拉取字典
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> since 1.1.6
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通过配置 `source` 接口来实现,接口返回字典对象即可,数据格式参考 map 配置。
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```schema: scope="body"
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{
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"type": "form",
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"data": {
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"type": "2"
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},
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"body": [
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{
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"type": "mapping",
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"name": "type",
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"label": "映射",
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"source": "/api/mapping"
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}
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]
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}
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```
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> 默认 source 是有 30s 缓存的,通常字典数据不长变更。如果想修改,请参考 [API](../../../docs/types/api) 文档配置缓存。
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### 关联上下文变量
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> since 1.1.6
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同样通过配置 `source` 来实现,只是格式是取变量。
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```schema: scope="body"
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{
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"type": "form",
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"initApi": {
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"url": "/api/mapping",
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"method": "get",
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"responseData": {
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"zidian": "$$$$",
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"type": "2"
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}
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},
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"body": [
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{
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"type": "mapping",
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"name": "type",
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"label": "映射",
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"source": "$${zidian}"
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}
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]
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}
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```
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2021-11-15 13:25:13 +08:00
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## 占位文本
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通过 `placeholder` 可以控制数据不存在时的展现
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```schema
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{
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"type": "page",
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"body": {
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"type": "mapping",
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"placeholder": "数据不存在",
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"map": {
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"1": "第一",
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"2": "第二",
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"3": "第三",
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"*": "其他"
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}
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}
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}
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```
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2020-07-28 10:03:53 +08:00
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## 属性表
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2021-04-06 20:06:13 +08:00
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| 属性名 | 类型 | 默认值 | 说明 |
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| ----------- | ----------------- | ------ | -------------------------------------------------------------------------------------- |
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| className | `string` | | 外层 CSS 类名 |
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| placeholder | `string` | | 占位文本 |
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| map | `object` | | 映射配置 |
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| source | `string` or `API` | | [API](../../../docs/types/api) 或 [数据映射](../../../docs/concepts/data-mapping) |
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