Thankfully, in recent times developers have commonly implemented a variable auto-scroll rate as shown in Figure 19-7, where the automatic scrolling increases in speed as the cursor gets closer to the window edge.

• 近来，有一些开发人员共同开发出了一个自动滚屏的变体，如图19-8所示。 当光标与窗口边界的距离越近，自动滚屏的速度就会增加。