但是现在假设GetInt只是使光标闪烁，或者是不变的——它依赖于你的电脑，和操作系统之类的。
But for now assume that GetInt just makes the cursor blink or at least stay steady — it depends on your computer and operating system and such.
另外一种鼠标替换物是视线跟踪系统，它能判断出你的视线移动的位置并相应地调整屏幕光标移动的位置。
Another alternative to the mouse as a pointing device is to use a gaze-tracking camera, which works out where you are looking and moves an on-screen pointer accordingly.
《每日电讯报》网站报道称，用户以后不必在鼠标垫上通过滑动鼠标，来使光标在屏幕上移动了。戴上一双特制手套，来操作一个名为G - Speak的系统就可以了。
Rather than navigate a cursor across the screen by sliding a mouse across a mat, users would don a pair of special gloves to operate the system known as G-Speak, telegraph.co.uk reported.
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