What is the difference between JavaFX node and a UI component?
开发者_开发知识库I understand that the both concepts are similar but I am sure that there is a reason why we call a JavaFX Node a node and not a Component.
Shortly, node is a general element in a scene tree. Component as generaly understood is a composition of several nodes (in JavaFX) enriched with behavior of some kind. In JavaFX we do not have components. We rather called them controls.
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是否在对方手机上显示已读，是由用户自行设置的。依次打开iPhone的“设置-信息”，会有一个“发送已读回执”的选项。将其打开，对方就能看到你，是否已经阅读了本条iMessage信息。将其关闭，对方就看不到。
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