实体定义
属性定义
序号属性名称中文解释数据类型必填
GfcRoot
GfcProperty
1Name属性名称GfcLabel√
2CodeGfcString
3ExtensionGfcString
GfcSimpleProperty
GfcListProperty
GfcEntityListProperty
4ValuesLIST [0:?] OF GfcRoot
继承关系
GfcRoot
  └GfcProperty
    └GfcSimpleProperty
      └GfcListProperty
        └GfcEntityListProperty