鼠标支持有两个主要用途：坐标跟踪和缩放。
Mouse support has two main USES: coordinate tracking, and zooming.
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在这两个方法调用之间，move方法接收每次鼠标移动的坐标。
In between, the move method receives the coordinates of every mouse movement.
在你想要放坐标的地方释放鼠标。
Release the mouse button where you want to start the axes.
应用推荐
模块上移
模块下移
不移动