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我有一个带有子菜单的上下文菜单。当主菜单失去焦点时，子菜单会突然隐藏。我希望在主菜单失去焦点后显示子菜单几秒钟。我怎样才能做到这一点？
I have an issue with using <object>. I need it to show different external pages, but it's not really working for me. It is like, after the first time I set Data, changing it does nothing. Do I need to ref
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