iter(g32): tree 补 ↑↓/Home/End 行间导航
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@@ -1772,7 +1772,7 @@
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"节点树用 { key, label, children } 描述,key 唯一即可(选中与展开都按 key 记)",
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"传 selected 信号即可外部受控;不传则组件内部维护选中态",
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"点箭头只展开/收起,点标签才选中;叶子节点箭头位置留空以对齐",
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"键盘 Enter/空格 选中、→ 展开、← 收起;disabled 节点点击与键盘都不响应",
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"键盘:↑↓ 在可见节点间移动、Home/End 到首末行(只移动焦点),Enter/空格 选中、→ 展开、← 收起;disabled 节点点击与键盘都不响应",
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"defaultExpandAll 首屏展开全部分支(外部已给 expanded 初值时以外部为准)"
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]
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}
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