说明：  PY系列8为接口8位色屏，使用STC11L60XE单片机驱动，外部晶振12M. 驱动电压5V，编译环境：keil uvision4 该函数主要实现：单点/8点清屏、读写显存、亮度调节、写边框、填充色块、写数字、刷新显示等测试
(PY Series 8 interface 8-bit color screen, use STC11L60XE microcontroller drive, an external crystal 12M. Driving voltage of 5V, the compiler environment: keil uvision4 the function to achieve: single point/8:00 clear screen, read-write memory, brightness adjustment, write border, fill color blocks, write numbers, refresh the display test)