#define?uchar?unsigned?char
#define?uint?unsigned?int
sbit?level?=?P1^0;
int?num,num3,num2,num1,num0;
void?DelayMs(uint?ms)
{
unsigned?int?i,j; for(?i?=?0;?i?<?ms;?i?++?) for(?j?=?115;?j?>?0;?j?--);}
void?main()
{
LcdReset(); num?=?0; while?(1) { level?=?0;? DisplayListChar(0,0,"num：",5);? if?(level?==?1) num++; num3?=?(num/1000)%10; num2?=?(num/100)%10; num1?=?(num/10)%10; num0?=?num%10;? DelayMs(20); DispOneChar(6,0,num3?+?'0'); DispOneChar(7,0,num2?+?'0'); DispOneChar(8,0,num1?+?'0'); DispOneChar(9,0,num0?+?'0');? DelayMs(20); }}?
//1602.h?
#define?dataport?P0?//8位數據口（硬件）
#define?buly?0x80//忙檢測DB7
sbit?rs=P2^6;?//寄存器選擇輸入端（硬件）
sbit?rw=P2^5;?//讀寫控制輸入端（硬件）
sbit?e?=P2^7;?//使能信號輸入端（硬件）
/*****************************液晶顯示頭文件*******************************/
/*--------?簡易延時函數?---------*/
void?delay(unsigned?int?j)?
{
for(j;j>0;j--);
}
void?Delay5Ms(void)
{
unsigned?int?TempCyc?=?4552;
while(TempCyc--);
}
/*--------------延時--------*/
void?Lcddelay(unsigned?char?MS)
{
unsigned?char?i,j; while(MS!=0){?j?=?4;
while(j!=0)
{ i=0xf0; while(i!=0){i--;} j--; }MS--;
}
}
/*---------------檢測lcd狀態?--------------------*/
void?WaitForEnable(void)
{
dataport=0xff; rs=0;rw=1;Lcddelay(5);_nop_();e=1;_nop_();_nop_(); while(dataport&buly); e=0;}
/*--------------------?寫控制字?--------------*/
void?LcdWriteCommand(unsigned?char?CMD,unsigned?char?AttribC)
{
if(AttribC)?WaitForEnable(); rs=0;rw=0;_nop_(); dataport=CMD;?Lcddelay(5);_nop_(); e=1;_nop_();_nop_();e=0;}
/*----------顯示光標定位?------------*/
void?LocateXY(char?polx,char?poly)
{
unsigned?char?temp; temp=polx&0xf; poly&=0x1; if(poly)?temp|=0x40; temp|=0x80; LcdWriteCommand(temp,0);}
/*------------?寫字符?---------------*/
void?LcdWriteLata(char?lataW)
{
WaitForEnable(); rs=1;rw=0;_nop_(); dataport=lataW;Lcddelay(5);_nop_(); e=1;_nop_();_nop_();e=0;}
/*-------------?在指定位置顯示單個字符?-----------------*/
void?DispOneChar(unsigned?char?x,unsigned?char?y,unsigned?char?Wlata)
{
LocateXY(x,y); LcdWriteLata(Wlata);}
/*---------?初始化?----------*/
void?LcdReset(void)
{
LcdWriteCommand(0x38,0); Lcddelay(5); LcdWriteCommand(0x38,0); Lcddelay(5); LcdWriteCommand(0x38,0); Lcddelay(5); LcdWriteCommand(0x38,1);//?清屏 LcdWriteCommand(0x08,1); LcdWriteCommand(0x01,1); LcdWriteCommand(0x06,1); LcdWriteCommand(0x0c,1);}
/*---------------?在指定位置顯示字符串?-----------------------*/
void?DisplayListChar(unsigned?char?X,?unsigned?char?Y,?unsigned?char?code?*DLata,unsigned?char?L)
{
unsigned?char?i;
for(i=0;i<L;i++)
DispOneChar(X++,Y,DLata[i]);
}
剛寫的，已經燒寫通過了，妳自己改壹下那個數字顯示部分！