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当前的鼠标市场已由光电鼠标转为以机械鼠标为主导。虽然机械鼠标有较大的优点，但许多使用者却经常受到鼠标失灵的困扰。通常有３个原因引起鼠标失灵：（１）时间久了，内部滚轮因积灰太多而滚动失灵。（２）由于发光管或光敏三极管的敏感度下降等原因，造成感光不敏感。（３
The current mouse market has shifted from optical mice to mechanical mice. Although mechanical mouse has greater advantages, but many users are often troubled by mouse failure. There are usually three causes of mouse failure: (1) A long time, the internal wheel due to too much dust and rolling failure. (2) due to the sensitivity of LED or phototransistor and other reasons, resulting in sensitive insensitive. (3