2-5.c

一些简单的c51程序

#include <stdio.h>
#include <reg51.h>
                       
void main()                          
{                                                              
 
int x=4,y=5;
  
SCON = 0x50; 
TMOD |= 0x20; 
TH1 = 0xf3; 
TR1 = 1;
TI = 1; 

x=1;                        
x=2;                          
x=3;                      
printf("x=%d,&x=%u\n",x, &x);    
printf("y=%d，&y=%u\n",y,&y);    
		                                      
printf("x=%d,&x=%u\n",x,&x);    
printf("y=%d,&y=%u\n",y,&y);     
                                    
printf("x=%d,&x=%u\n",x,&x);     
printf("y=%d，&y=%u\n",y,&y);     
                                    
printf("x=%d，&x=%u\n",x,&x);     
printf("y=%d，&y=%u\n",y, &y);   
}