数字与光柱双显仪表，其中的光柱部分驱动程序，有详细的文字说明，里面介绍两个方法，一个采用大循环移位，速度慢。一个主要移位动态字节，速度快-Figures with light beam dual display instrument, in which the light beam part of the driver, there is a detailed text descr iption, which describes two methods, a large circular shift, slow. A major shift the dynamic byte, speed