此类实现了一个 I3S 字段，它是附加到节点的自定义数据 This class implements an I3S Field which is custom data attached to nodes
成员 Members
获取该字段的标头。 Gets the header for this field.
获取字段的名称。 Gets the name for the field.
readonly resource : Resource
获取字段的资源 Gets the resource for the fields
获取该字段的值。 Gets the values for this field.
方法 Methods
加载内容。 Loads the content.
返回： Returns:
加载字段数据时解决的承诺 A promise that is resolved when the field data is loaded