说明：  鼠标类，随意控制鼠标。The MicrosoftMouse class provides member functions for all Microsoft Mouse Driver functions packaged in a convenient interface. Do not stantiate any instances of the class - instead access them through MM, the only instance of MicrosoftMouse
(Type mouse, to manipulate the mouse. The MicrosoftMouse class provides member functions for all Microsoft Mouse Driver functions packaged in a convenient interface. Do not stantiate any instances of the class- instead access them through MM, the only instance of MicrosoftMouse)