blockly >ToolboxCategory >openIcon_
ToolboxCategory.openIcon_() 方法
添加适当的类，以显示打开图标。
Signature:
protected openIcon_(iconDiv: Element | null): void;
参数
| 参数 | 类型 | 说明 |
|---|---|---|
| iconDiv | 元素 |null | 包含图标的 div。 |
返回：
void
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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 `openIcon_()` method, part of the `ToolboxCategory` class, is responsible for visually indicating that a category is open. It takes an `iconDiv` element as a parameter, which represents the icon's container. The method then adds specific CSS classes to this `iconDiv` to display the open icon. It returns nothing (void) after modifying the provided element.\n"]]