在计算机绘图技术中，通过在平面上移动进行操作的一种手握的画面定位装置。它通常有一个控制球或一对轮子。
In computer graphics, a hand-held locator operated by moving it on a flat surface.A mouse generally contains a control ball or a pair of wheels.
一组要依次执行的操作，除第一个外，每个操作均使用前一个操作的输出作为输入。
A set of operations that are to be performed sequentially, each of which(except the first) uses the output of the previous operation as input.
长于陆海空作战的，三栖的可在陆上、水上或空中操作的
Designed to operate on land, water, or in air.
程序运行时，根据运行结果选择计算机要执行的下一个操作的一种方法。参阅branch。
Method of selecting the next operation for the computer to execute, while the program is in progress, based on the computer results.
