万年历

				//在显示汉字的时候要注意不要在偶数的位置
				//在偶数的位置是乱码
				//希望大家多交流
				
				#include 
				#include 
				
				#define uchar unsigned char
				#define uint  unsigned int
				
				#define LCD_data  P1       //数据口
				sbit LCD_RS  =  P2^0;      //寄存器选择输入 
				sbit LCD_RW  =  P2^1;      //液晶读/写控制
				sbit LCD_EN  =  P2^2;      //液晶使能控制
				
				#define delayNOP(); {_nop_();_nop_();_nop_();_nop_();};
				
				uchar code  DIS1[] = {"    123         "};
				uchar code  DIS2[] = {"    电子        "};
				uchar code  DIS3[] = {"    加油        "};
				uchar code  DIS4[] = {"  奋斗就能成功  "};
				
				void delay(int ms)
				{
					uchar i;
					while(ms--)
				   {
				  	 for(i = 0; i< 250; i++)
				  	 	delayNOP();
				   }
				}	
				
				bit lcd_busy()	//判断是否忙
				 {                          
				    bit result;
				    LCD_RS = 0;
				    LCD_RW = 1;
				    LCD_EN = 1;
				    delayNOP();
				    result = (bit)(LCD_data&0x80);
				    LCD_EN = 0;
				    return(result); 
				 }
				
				void lcd_wcmd(uchar cmd)  //写命令
				{                          
				   while(lcd_busy());
				    LCD_RS = 0;
				    LCD_RW = 0;
					LCD_data = cmd;
					LCD_EN = 1;
				    delayNOP();
				    LCD_EN = 0;  
				}
				
				void lcd_wdat(uchar dat)  //写数据
				{                          
				   while(lcd_busy());
				    LCD_RS = 1;
				    LCD_RW = 0;
				    LCD_data = dat;
					LCD_EN = 1;
					delayNOP();
				    LCD_EN = 0; 
				}
				
				void lcd_wstr(uchar *p)
				{
					while(*p)
					lcd_wdat(*p++);
				}
				
				/*uchar lcd_rdat( )   //读液晶数据，这里未用到
				{
					uchar reutrn;
					while(lcd_busy());
				    LCD_RS = 1;
				    LCD_RW = 1;
					LCD_EN = 1;
				    delayNOP();
					reutrn=	LCD_data;
				    LCD_EN = 0;
				    return(reutrn);
				}*/
				
				void lcd_init()	//液晶初始化
				{ 
					delay(40);
				    lcd_wcmd(0x30);      //基本指令操作
				    delay(5);
					lcd_wcmd(0x30);      //基本指令操作
				    delay(1);
				    lcd_wcmd(0x0C);      //显示开，关光标
				    delay(5);
				    lcd_wcmd(0x01);      //清除LCD的显示内容
				    delay(5);
					lcd_wcmd(0x06);		 //游标自动右移，整体画面不移动
				}
				
				void lcd_pos(uchar X,uchar Y)		//X为行，Y为列
				{                          
				   switch(X)
				   {
				   case 1: Y|=0x80; break;
				   case 2: Y|=0x90; break;
				   case 3: Y|=0x88; break;
				   case 4: Y|=0x98; break;
				   default : break;
				   }
				   lcd_wcmd(Y);     //显示地址
				}
				
				void  clr_screen()
				{
				  lcd_wcmd(0x01);      //清屏 
				   delay(5);     
				}
				
				void display()		  //为反白做准备，目地是在图形显示时防止有噪点
				{ 
				  uchar i,j;
				  lcd_wcmd(0x34);        //写数据时,关闭图形显示
				
				  for(i=0;i				  {
				    lcd_wcmd(0x80+i);    //先写入水平坐标值
				    lcd_wcmd(0x80);      //写入垂直坐标值
				    for(j=0;j				    lcd_wdat(0x00);     
				    delay(1);
				  }
				
				  for(i=0;i				  { 
				    lcd_wcmd(0x80+i);
				    lcd_wcmd(0x88);
				    for(j=0;j					lcd_wdat(0x00);    
					delay(1);
				  }
				  lcd_wcmd(0x36);       //写完数据,开图形显示 
				}
				
				void photodisplay(uchar x,uchar y,uchar width)		//反白，X值为0－7，Y值为0－3，width为行反白格数
				{ 
				  uchar i,j,flag=0x00;
				  display();
				  if(y>1)
				  {
				   flag=0x08;
				   y=y-2;
				  }
				  lcd_wcmd(0x34);        //写数据时,关闭图形显示,且打开扩展指令集
					for(i=0;i					{
						lcd_wcmd(0x80+(y						lcd_wcmd(0x80+flag+x);
						for(j=0;j						{
						lcd_wdat(0xff);
						lcd_wdat(0xff);
						}
						delay(1);
					}
					lcd_wcmd(0x36);       //写完数据,开图形显示 
				//	lcd_wcmd(0x30);       //从扩展指令到基本指令
				}
				
				void main()
				{
				   lcd_init();                 //初始化LCD
				   clr_screen();             //清屏   
				   while(1)
				   {
				     clr_screen();
				     lcd_pos(1,0);             //设置显示位置为第一行
				     lcd_wstr(DIS1);
				     delay(30);
				 
				     lcd_pos(2,0);             //设置显示位置为第二行
				     lcd_wstr(DIS2);
				
				     lcd_pos(3,0);             //设置显示位置为第三行
				     lcd_wstr(DIS3);
				
				     lcd_pos(4,0);             //设置显示位置为第四行
				     lcd_wstr(DIS4);
				
					 delay(1000);
					 delay(1000);
					 photodisplay(3,2,3);
					 delay(1000);
					 delay(1000);
					 lcd_wcmd(0x30);         //基本指令集
					 delay(1000);
					 delay(1000);
					}
				
				}