3-5.c

一些简单的c51程序

#include <stdio.h>
#include <reg51.h> 
main()
  {
           int i=0;
           char c;
           SCON = 0x50; 
TMOD |= 0x20; 
TH1 = 0xf3; 
TR1 = 1;
TI = 1; 
		   while(1)                   
           {
               c='\0';                
               while(c!=13&&c!=27)      
               {
                    c=getchar();
                    printf("%c\n",c);
               }
               if(c==27)
                    break;
               i++;
               printf("The No. is %d\n",i);
          printf("The end");
}

}