说明：  //液晶显示初始化ini_OCMJ(void)和驱动程序sub_lcd(uchar in)。 //占用I/O口为 #define LCD_OUT P4 //sbit LCD_BUSY=P3^6 //sbit LCD_REQ=P3^7
(//LCD ini_OCMJ initialization (void) and driver sub_lcd ( uchar in).// Occupiers I/O# define LCD_OUT P4// sbit LCD_BUSY = P3 ^ 6// sbit LCD_REQ P3 = ^ 7)