The code in Listing 7 synchronizes all segments to show the label at the same time, ensuring that the user sees a coordinated display of a cross-segment dynamic component.

清单7中的代码同步所有段，以在相同时间显示标签，确保用户看到跨段动态组件的同位显示。

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Some common examples of events are found in user interface applications where a user action such as clicking a button causes a segment of code to execute.

使用者介面应用程序中的一些常见事件范例，像是利用使用者动作(例如按一下按钮)执行程序码区段。

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