The problem with flip-flop controls is that they fail to fulfill the second duty of every control—to inform users of their current state.
滚翻控件的问题在于其无法完成控件的第2个职责——告诉使用者它们当前的状态。
The problem with flip-flop controls is that they fail to fulfill the second duty of every control—to inform users of their current state.
滚翻控件的问题在于其无法完成控件的第2个职责——告诉使用者它们当前的状态。
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