Events.BUBBLE_OPEN 变量
Signature:
BUBBLE_OPEN = "bubble_open"
如未另行说明，那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可，并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情，请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC)：2024-09-12。
[null,null,["最后更新时间 (UTC)：2024-09-12。"],[[["The `oldParentId` property stores the ID of the block's previous parent before a move event."],["If the block was originally at the top level (not nested within another block), `oldParentId` will be undefined."],["This property is part of the `BlockMove` event, which is triggered when a block's position changes within the Blockly workspace."]]],[]]