The timer control that is located on the Components TAB can be safely used in any class.
在组件页上的定时器控件可以被安全的用在任何类中。
Use the timer control that is located under the Windows Forms tab only if the target is a Windows Forms designer.
仅当目标是Windows窗体设计器时才使用Windows窗体页上的定时器控件。
Timer: control speaking time of each speaker exactly 7 min.
计时人确保每人只有7分钟演讲时间。
Timer: control speaking time of each speaker exactly 7 min.
计时人确保每人只有7分钟演讲时间。
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