blockly >事件 >已选择 >oldElementId
Events.Selected.oldElementId 属性
上次选择的可选元素的 ID。
Signature:
oldElementId?: string;
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最后更新时间 (UTC)：2025-07-25。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-07-25。"],[],["The `oldElementId` property, found within the `Events.Selected` class, represents the ID of the previously selected element. This property, of type string, stores the identifier of the selectable element that was selected before the current one. It provides a way to track the previous selection state.\n"]]