![](https://csdnimg.cn/release/download_crawler_static/86675940/bg1.jpg)
#include<reg52.H>
#include <stdio.h>
#define uchar unsigned char
sfr lcd_data=0x80;
sbit lcd_E=P0^0;
sbit lcd_RW=P0^1;
sbit lcd_RS=P0^2;
sbit P3_4=P3^4;
sbit P3_5=P3^5;
sbit P3_6=P3^6;
unsigned char code show1[]="Welcome Suntoy";
unsigned char code show2[]="Friendship";
unsigned char code show3[]="Welcome gj";
unsigned char code show4[]="Friendship";
unsigned char code show5[]="Welcome ftl";
unsigned char code show6[]="Friendship";
unsigned char code show7[]="Welcome wf";
unsigned char code show8[]="Friendship";
unsigned char temp;
unsigned char key;
uchar i,j;
/****************************延时函数
**************************/
/*函数原型:void f_v_delay5ms(void)
/*函数功能:延时
/*输入参数:无
/*输出参数:无
///***********************************************
***********************/
void f_v_delay5ms(void)
{
unsigned char i;
unsigned char j;
for(i=0;i<100;i++)
{
for(j=0;j<250;j++)
;
}