> For the complete documentation index, see [llms.txt](https://docs.coreway.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coreway.com/yoov-plus/worksheet/worksheet-design/field-type/id-text-combo-rich-text.md).
# 证件、文本组合与富文本
这三个字段都属于对文本信息进行特殊处理或格式化的高级文本工具。
## **1. 证件字段**
这是一个预置了验证规则的专用文本字段，用于规范录入特定类型的证件号码。
* **支持的证件类型**：中国身份证、中国香港身份证、中国护照、中国香港护照、港澳通行证、台湾通行证。
* **核心功能**：系统会自动校验输入的号码是否符合所选证件类型的格式规则。
* **验证规则**：支持设置为 **必填** 和 **不允许重复**。
## **2. 文本组合字段**
此字段用于将多个其他字段的值（及固定字符）自动拼接成一个新的文本字符串，常用于生成规范化的标题或编号。
* **核心用途**：动态生成如“订单编号-客户名-日期”等组合信息，非常适合设为记录的**标题字段**。
* **配置方法**：
1. 添加文本组合字段。
2. 按顺序选择需要拼接的**表单字段**，并可插入**固定字符**（如“-”、“/”）作为连接符。
3. 保存后，系统将根据规则自动生成组合文本。
* **数据更新**：若源字段值变更，可对已有记录**批量刷新**此字段以更新组合值。
## **3. 富文本字段**
提供丰富的编辑器，允许用户在记录中输入并格式化复杂的图文内容。
* **核心功能**：超越纯文本，支持插入**链接、图片、视频**，并可使用加粗、列表、对齐等排版工具。
* **适用场景**：产品详细描述、通知公告、项目报告、内部协作留言等需要丰富格式的内容。
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