Unity Engine documentationScript ReferenceUnityEngineUnityEngine.UIElementsDragAndDropDatasourceThe object that started the drag.阅读时间1 分钟最后更新于 1 个月前Definition Type: Property Namespace: UnityEngine.UIElements Assembly: UnityEngine.UIElementsModule public abstract object source { get; } Remarks For collection views such as ListView, TreeView, and others, this refers to the corresponding view that started the drag-and-drop.