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void send(uchar Data)
{
 uchar i,high=0;
 EA=0;
 EX0=0;//¹Ø±ÕÖжÏ
 CLK=0;
 delay10us(11);
 DATA=0;
 delay10us(2);
 CLK=1;
 while(CLK==1);
//¿ªÊ¼·¢ËͰËλÊý¾Ý
 for(i=0;i<=7;i++)
 {
  if(Data & 0x01)
  {
  DATA=1;
  high++;
  }
  DATA=(Data>>1);
  while(CLK==0);
  while(CLK==1);
 }
 if(high%2==0) DATA=1; //ÉèÖÃÆæÐ£Ñéλ
 else DATA=0;
 while(CLK==0);
 while(CLK==1);
 DATA=1;
 while(DATA==1);
 while(CLK==1);
 while(DATA==0);
 while(CLK==0);

 EA=1;
 EX0=1;//дÊý¾Ý³ÌÐò½áÊøºó¿ªÖжÏ


È«²¿³ÌÐòÊÇÕâÑùµÄ£º
#include <reg52.H>
#include <intrins.H>
#include <head.h>

#define uchar unsigned char
#define uint unsigned int
#define LCD_DATA P2 //Êý¾Ý¿Ú
sbit RS = P1^5; //²¢ÐеÄÖ¸Áî/Êý¾ÝÑ¡ÔñÐźÅ, HÊý¾Ý, LÃüÁî
sbit RW = P1^7; //²¢ÐжÁдѡÔñÐźÅ, H¶Á, Lд
sbit E = P1^6; //²¢ÐÐʹÄܶË, HÓÐЧ, LÎÞЧ
sbit PSB = P1^1; //²¢/´®½Ó¿ÚÑ¡Ôñ, H²¢,L´®
sbit RET


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2. Write a program to solve the single‐source shortest‐path problem (Dijkstra
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assert()
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exit()

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